Sonic (MD) - Labyrinth Zone:
I love under water zones! They’re usually challenging and I like the threat of drowning. Labyrinth Zone has ingenious level design with a lot of different challenging things happening in it. It is very varied and isn’t just a zone which you can run through without anything special happening in it. The boss of this zone is also one of my favourites. It is different from all the other bosses in the early Sonic games. You don’t have to defeat Eggman, but have to survive from the water. It’s challenging and interesting.
Sonic (MS) - Jungle:
The visuals in this level are very nice. It has some cool features in the level design. I like especially act 2, because the level goes upwards and it’s challenging, because you have to be careful to not fall down again. The boss is a little bit unfair, but I still like it.
Sonic 2 (MS) - Aqua Lake Zone:
I love under water zones! I especially love act 2! Most of all, I like the part in the level where you go up with a bubble and have to avoid the crayfishes and the spears. Unfortunately, the boss is very lame. Act 1 is good, but you can take a shortcut which makes the act so short, that makes the act practically useless, except for collecting lives. I like the music in this zone very much!
Sonic 2 (MD) - Wing Fortress Zone:
I never really liked Sonic 2 (MD) that much. I mean I like it, but compared to the other jump-‘n’-Run-Sonic-games it is my least favourite. I even like the Advance games better. I have chosen Wing Fortress Zone, because I like the Idea of having a level on a giant aeroplane and because the zone is challenging, but not as annoying as the other zones in this game. I also like the heroic music.
Sonic CD - Wacky Workbench:
I’m very fascinated by this zone! It’s the most unusual zone in Sonic’s history! You have a lot of cool features in this level. It’s totally chaotic (I love chaoticness!) and you are always moving, especially up and down (Woooooooooow, my head’s spinning! XP). And another cool feature is that you can loose you’re way. You really have to search to find the exit. Unfortunately, all bosses in Sonic CD are lame.
Sonic & Tails - Sleeping Egg Zone:
I like all the jumping around with the springs and the whole breakable and falling platforms. You can do a bunch of different experiments in this zone with this features and this makes the zone interesting.
Sonic Spinball - Toxic Caves:
I’m actually not really sure with this choice. Something just made me choose this level and I can’t explain why.
Sonic 3 - Marble Garden Zone:
This zone in Sonic 3 is the zone with the coolest features. I especially like the spinning top platforms which take off in the air when you run on them. You can do a lot of experiments with them and try to reach new places. The altering ground and the main boss are also interesting, although the boss gets really easy once you know how to beat it. The acts are huge, not only horizontally but also vertically, and there are a lot of places you can go. Very good level design!
Sonic & Knuckles - Sandopolis Zone:
One of the best zones ever! Again, the zone is full of cool features, especially act 2. I love the settings, since I’m a big fan of ruins, ancient buildings and pyramids. I like it very much that act 1 is outside and act 2 is inside an ancient building/pyramid. The most interesting features are the ghosts that appear when the level gets dark and the rising sands and time doors. Plus, the zone is huge!
Sonic & Tails 2 - Tidal Plant:
I love under water zones! The level design in this zone is marvellous! Almost all 3 acts are completely under water. The whole zone is very challenging and has some cool ideas. The music is lovely!
Chaotix - Botanic Base:
Chaotix is most fun when playing with someone else. It’s almost unbelievable how fun this can be, if you play it with the right person. The main idea of the game is very cool and gave the game potential to be very great. But unfortunately, the level design is not that special and it doesn’t give you much opportunity to use the special features of this game, especially in single-player. I actually can’t remember the zones that well. I just choose Botanic Base because it’s beautiful and has the best music. But Marina Madness is also very beautiful, probably more beautiful than Botanic Base.
Sonic 3D - Rusty Ruin Zone:
The music in the Mega Drive version is awesome (not only in this zone - I don’t like the music of the Saturn and PC version.)! Probably the Sonic game with the best sound tracks! Apart from the great music in this zone, the visuals are also very nice, because of the ruinal setting. What I like most in this zone are the fans that send you whirling. Cool feature which gives you a lot of possibilities for experimenting.
Sonic Blast - WORST SONIC GAME EVAAAAAAAAR!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Sonic R - Regal Ruin:
I can’t remember the tracks in this game that much. I can only remember that the tracks which I enjoyed most were Regal Ruin and Reactive Factory. I can’t remember which one I enjoyed more, but I chose Regal Ruin, because I love ancient settings!
Sonic Adventure - Sky Deck:
Most chaotic and challenging stage in Sonic Adventure with the coolest features! I especially like the tilted camera angles in some parts of the stage.
Sonic Adventure 2 - Crazy Gadget (Haven't seen Green Hill yet.):
I really like controlling Sonic upside down and tilted in 3D Sonic games!
Sonic Advance - Egg Rocket Zone:
Without question, the best zone in the whole game! It is actually the zone in the game which has really good level design and original ideas, especially in the first act. The music rocks in both acts. The boss is challenging in a good way.
Sonic Advance 2 - Egg Utopia:
Since all the zones in Sonic Advance 2 feel the same, it’s hard to say which one is the best. I chose Egg Utopia because it’s the most challenging one.
Sonic Battle - Metal Depot:
Because of the music and because it’s horizontally stretched, thus, different from the other arenas.
Sonic Heroes - Bingo Highway:
I like the Bingo tables and I love the music!
Sonic Advance 3 - Chaos Angel:
The most original Zone in all of the Advance games with the coolest features and excellent music! This is actually one of my most favourite zones ever! A pity that the other zones in Sonic Advance 3 are by far not as cool as this one! Everything is actually right in this Zone: The music is fantastic! The ancient setting is fantastic! You can run really fast in this zone, but still are challenged and have great platforming sections. This is how all the Advance zones should have been, but most of them failed to be, because of lack of balance between speed, platforming and challenge. The permanent chaotic feeling in this zone only helps!
Sonic Rush - Dead Line:
Altitude Limit and Dead Line are the zones with the coolest features in Sonic Rush. I was not sure which one to choose, but I decided to choose Dead Line, because I like the rockets and getting shot by the springs from one screen to the other. I also love the battle between Sonic and Blaze. Plus, I have one of the best scores EVER!!! In Dead Line act 1 with Sonic: 118064 points! After all, Sonic Rush is my most favourite game of all time!
Shadow - Cosmic Fall:
The best 3D Sonic stage ever! Great music, which really suits the feeling of the stage, great visuals (I really like space stages in all 3D Sonic games!) and very challenging in a nice way! I love all the moving and rotating platforms and the feeling that you are permanently falling. The part of the game where you have to jump around with the jumping vehicle is also very challenging and fun. All in all, great feeling in the whole stage with cool gimmicks!
Sonic Riders - Dark Desert (Haven't seen Sega Illusion yet.):
Although Sonic Riders is a cool racing game, all the tracks feel pretty much the same. I am really not sure which track is my most favourite, but I chose Dark Desert because it has the best music in the whole game and I am a fan of ancient settings. I chose Dark Desert instead of Sand Ruins because Dark Desert looks nicer, because it is played in the night and you have a beautiful moon in the background. It’s also more challenging.
Tropical, Hill or Leafy - Marble Garden
Lava - Marble Zone:
I love the music and the gimmicks in this Zone, especially the floating bricks on the lava. But the most important reason for choosing this as the best lava zone ever is nostalgia!
Pinball or Casino - Bingo Highway
Aqua - Labyrinth Zone
Speed Roads - Stardust Speedway:
I love the visuals in this zone, especially in the past! I also loved the race against Metal Sonic the first time I played it, but once you manage to beat Metal Sonic, you realize that the race was actually a little bit poor and it could have been done much better. Still loved the idea!
Mechanical Base - Wacky Workbench
Jungle - Jungle
Sky - Sky High Zone:
One of my favourites of all time! The music is waaaaaaay cool and I love jumping around on the clouds and flying around with the hang gliders and dodging the spikes. The boss is also interesting and challenging. I might even like this zone better than Aqua Lake Zone, but I’m not sure.
Cave - Mystic Cave (I think it's the only real cave zone/stage which is not actually a lava level.):
I really like the music and the setting in this zone. Especially the setting is pretty unique. But it lacks in level design, just like most other zones in Sonic 2 (MD). I chose this zone, because there is probably nothing else to choose from. XP
Pipy - Scrambled Egg Zone (I think it's the only really pipy zone/stage.):
The zone is not that spectacular, but I chose this zone, because there is probably nothing else to choose from. XP
Fantasy - Sleeping Egg Zone
Ice - Icecap Zone:
I’m not a very big fan of ice zones in Sonic games, but Icecap Zone from Sonic 3 is the most interesting one.
Egyptian - Sandopolis
Kiddy - Music Plant:
The question is, is kiddy good at all? But apart from the kiddy style, Music Plant is quite good. Well, it’s just Sonic Advance 2: Nice and fun, but could have been much, much, much better!
Ships - Huge Crisis:
The choice would have been between Marina Madness and Huge Crisis. Although Marina Madness looks very beautiful, the winner is obviously Huge Crisis, because it’s Sonic Rush and it’s much more fun!
Non-Egyptian Ruin - Chaos Angel
Mountain or Canyon - Rail Canyon:
This is my second favourite Stage in Sonic Heroes. I actually like stages which are mainly on rails. Their challenging and fast! I especially like the several direction changes when you are on the rails which make you say: “Woooooooooow, my head’s spinning!” XP
City - Central City:
One of the best 3D Sonic stages ever! You have a big city with no goal ring and have to search carefully for bombs. There are a lot of places you can reach and you really have to search. The time limit threatens you to be fast. There are a lot of things happening in every corner of the city and it’s just awesomely chaotic!
Prison - Prison Island:
The choice would have been between Prison Lane, Iron Gate and Prison Island. Obviously, Prison Island is the winner, because the other two are just shooting stages. But Prison Island is a very good stage anyway and has very nice music.
Harbor - Metal Harbor (I think it's the only harbor zone/stage.):
I chose this stage, because there is probably nothing else to choose from. XP
Space - Cosmic Fall
Techno - Techno Base:
The choice would have been between Techno Tower and Techno Base. Techno Base is in my opinion definitely better. It has nice visuals and has probably the best boss ever!
Castle - Cryptic Castle:
The choice would have been between Hang Castle, Mystic Mansion and Cryptic Castle. Cryptic Castle is my most favourite. It has awesome music, very nice atmosphere and pretty good level design. Better than the other two!
Digital - Mad Matrix:
One of the best 3D Sonic stages ever! It is huge, especially if you play the hero mission, has some cool features, looks nice and original and has one of the best soundtracks ever! I like to circuit in the circuit and I like the colour puzzles.
Alieny - Black Comet:
Lovely music! Nice level design!
Race - Speed Highway:
It is the only challenging and fun stage with Tails in Sonic Adventure. The first time I played it, it seemed to me to be the most difficult stage in the whole game. It gets easy after playing it several times, but it’s still fun.
Treasure Hunt - Mad Space:
I absolutely love this stage! I wished there was such a stage available to Sonic! All the circling around the planets and flying from one planet to another with wacky camera angles is just plane fun! The music is also lovely and fits to the stage.
Escape - Hot Shelter:
Probably the second best stage in Sonic Adventure! It has a lot of cool and fun features!
Shooting - Cosmic Wall:
One of the few shooting stages which is really fun! It looks nice, because it’s a space level, has very nice music and the low gravity makes it more fun to play. I also like the sections where Eggman is on a rail and has to shoot up oncoming things.
Fishing - WORST IDEA EVAAAAAAAR!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Special Stage -
1. Sonic CD:
Looks very nice, has cool music and is simply fun to play! I like it that the game play is real 3D (you can move in any directions) and Sonic is always on the run. It is very challenging, has cool features and is probably the most original Special Stage ever.
2. Sonic Heroes:
The fastest Special Stage ever! The adrenalin kick in these Special Stages is incredible!
3. Sonic (MD):
I don’t know, but I just love it! It’s probably nostalgia.
While Sonic Advance 2 has flawed level design, I just love the idea of the boss acts! The fact that Sonic is always running gives a massive adrenalin kick and makes the battles more challenging. The music in the boss acts is especially fucking awesome! Egg-Go-Round is without a doubt one of the most challenging bosses in Sonic’s history.
Long, challenging battle which gets harder and harder all the time, since new challenges and surprises are added after every hit. Very original! The music is also very cool!
3. Labyrinth Zone Boss:
This boss is different from all the other bosses in the early Sonic games. You don’t have to defeat Eggman, but have to survive from the water. It’s challenging, interesting and triggers nostalgia.
(Haven't seen Nonaggression yet.)