QFT. The 3D Sonics have got progressively worse in my opinion, not that I've played STH yet. But some on! Heroes sucked big time. I would burn it through all of the levels but I would die every 5 seconds due to some horrific level design. Controlling the characters was like trying to swallow an inflated balloon, only to have it pop in your face (aka you fly into the infinite abyss and die!). There was very little game mechanic variation and far too many difficult rather than fun rail sections. I had this with some of the later bits of SA2 as well.
I really hope that they have dug into this format for Wildifre (or Lost Rings was it?) and bring all those lovely bits that were great about the 2D ones.
Speed, lots of routes, neck braking changes in direction, great bosses, thumping music and lots of rings and power-ups perfectly placed to temp you into the jaws of death!