Pillow Fists? Cain's got KO power. Dude has some awesome KOs on his record. And he wont gas out like Carwin. He's a cardio beast. And Brock couldn't even keep Randy down. Do you really think Randy is anywhere near as strong as Cain. Look, no doubt, Brock's bigger and stronger, but according to people that have trained w/ Cain in the gym, he's one mean, angry mother fucker even while sparring. And you just can't teach anger.
Look, Brock has a very good chance of winning, but I think (or just really maybe hope) that he's going to find out that (to paraphrase the Machete trailer):
"He just fucked with the wrong Mexican!"