Griffin will win, he is tough as hell and is a finisher. Bonnar has better subs and decent stand up but he doesn't have the killer instinct to finish guys off. Forrest likes to fight, he actually fights better after getting rocked.
I saw Chuck yesterday, he cam to my gym to work out. He looks very confident, maybe a little cocky. Babalu has more to prove and has won 10 in a row after losing to Chuck. I think this may be closer than most people think. Babalu is very hungry and Chuck has been a little complacent holding the title.