I never played the 3D Sonic games. Actually, I may have played a demo for whatever one was a launch title for the Dreamcast. I was working in an electronics store at the time and we messed around with the demo unit for the Dreamcast a ton.
I believe it was either Sonic 3 or Sonic and Knuckles. Unless Sonic and Knuckles is Sonic 3... Either way, wasn't impressed. Then again I have never really been the biggest fan of platformer games in general. Always a much bigger fan of RPG and strategy games. Always sucked at quick and precise controls. Prefer to think and plan out my next move.