Anybody who doesn't say that the Pokemon in B&W are stupid. Seriously, they're not going to change 'em, so I see no point in whining in every single Pokemon thread. -.-
I'd say Meta Knight. The reason I chose him instead of Lucario is solely because he can attack way faster, and thus Chuck Norris can't attack as much because of Meta Knight's very fast slices. But who do YOU think could win? :D