His wrestling might not be the best in the division. but if you compare it now to where it was when he won The Ultimate Fighter, it's night and day.. And he seems to be improving every fight.
EDIT: might as well put this in this thread:
Bisping just tweeted:
Vitor just chinned me at the press conference.
Fedor, Mir, Lytle, Serra, Hendo, Chuck, Minowaman, Maynard, Forrest, Hunt
Pickett, Cerrone, Matt Brown, Bisping, Weidman, Barnett, Lawler