Hendo has that insane right hand, but it seems except Shogun people don't stand and trade with him, so he just head-hunts most fight,
and his recent fights showed that if he cant hit you with the right hand he just can't have much of an offense ( vs MAchida and vs Evans)
KO Power goes to Hendo
Wrestling I'd say Sonnen, he took Shogun down and kept him down, Hendo mostly defends takedowns, doesn't often go for takedowns in the same way Sonnen does.
BJJ - Sonnen, he submitted Shogun, and he used the butterfly guard very effectively to get from under Jones two times I think.
Cardio I'd go with Sonnen, especially at LHW since he cuts less weight his cardio should improve.