Sad to say, this is a hard decision to make here. Sonic 2 and 3 has total potential for me. But, going against my favorite, I must vote for Sonic 2, simply because I feel like Sonic 3 was incomplete as a game, and it should've done much more to lengthen the gameplay even more..

So, sorry Sonic 3... Sonic 2 reigns supreme.

1: yes it is. but when expanded, you can play the other levels from past sonic games on S&K

2: it did lack the Ice Cap Zone, but it was still an ok game to poke around with.