Xbox controller was not made for fighting games period. Anyone who prefers it is literally insane and handicapping themselves. There's a reason I forked the money over for 2 ps2 adapters so I don't have to ever us that POS. I only want to us Xbox controller for games that need the sticks like a shooter. That Frisbee d-pad can't register complex motions.
Aside from L2 and R2 PS3 controller is perfect. I only just fathomed what it would be like to play fighting games on Xbox with that magic cup ride of a pad.