1. Sonic 06
2. Sonic Chronicles: The Dark Brotherhood
3. Sonic Advance 3
4. Sonic Riders & Sonic Riders: Zero Gravity
5. Sonic R
6. Knuckles Chaotix
7. Sonic 3D Blast (Saturn)
8. Sonic Runners (iPad)
9. Sonic Shuffle & Sonic and the Secret Rings
10. Sonic Boom: Rise of Lyric
11. Sonic 1 (Saturn & iPad) [iPad version has unique features]
12. Sonic Advance
13. Sonic CD (iPad) [Tails Playable]
14. Sonic Battle
15. Sonic 2 (Saturn & iPad) [iPad version has unique features]
16. Sonic 3 & Knuckles (Saturn)
17. Sonic Adventure & Sonic Adventure 2
18. Sonic Heroes
19. Sonic Colors (Wii)
20. Sonic 4: Episode 2 (iPad) [Won't give me Episode Metal]
21. Sonic Rush
22. Sonic Advance 2
23. Sonic Colors (DS)
24. Sonic the Fighters
25. Sonic 4: Episode 1 (iPad) [Won't give me Episode Metal]
To be fair, Sonic 3 & Knuckles is a lot better with Classic Heroes, and I really hope that they make more teams for it. I didn't have a Dreamcast when I was growing up, or a Saturn, or a GameCube, so a lot of these things I visited within the last few years. As far as how I play, I really like how Amy plays in Sonic Adventure and Sonic Advance, so games where she's more like that are games I like more in general because I have more fun. I really like games with lots of characters to choose from and that you can do with multiple people. The iPad games are pretty fun actually.
By the way, I hated Sonic Generations so much that I refused to keep playing it and still haven't gone back to it yet. I also have Sonic and the Black Knight but unfortunately never really got into it. I've also tried some of the older games but I don't feel they're worth ranking because they're kind of...yeah. I'm not exactly going to include the GameGear because that's a completely different ballpark in quality.
I'm new on the site and this is my first post. Please, let's make friends!