Weird how everyone has COMPLETELY different opinions...
IMO, ps2 has the best controller by far, followed by xbox s-type, then gamecube. The s-type d-pad is fine, but not as good as the ps2's.
As for loading time, I found the xbox one to be much faster, almost negligible. Gamecube has the 2nd fastest and ps2 is the slowest.
I think Link is the coolest. Spawn is next and Heihachi is repulsive.