Reems takedown defence will be good enough to keep Big Foot on the feet, and Big Foot isnt going to fall to the floor every 2 seconds so i can see Reem easily outstriking him. Reem is far more explosive, athletic and i'd say stronger along with being a significantly better striker and that should be enough to get a finish here. Big Foot isnt all that hes being made out to be - Mike Kyle had him in trouble on the feet. Reem wont fear the ground to anywhere near the extent he did with Werdum.
I also see Barnett comfortably dropping Sergei on his head and getting a late submission or a UD. Sergei is better than Rogers on the ground, but he wont have alot to offer Josh.
Barnett v Overeem final. Now THAT is an interesting fight, i see Reem taking it, but Josh is a hell of a test for any fighter. So underrated and often ignored amidst him taking more steroids than Ronnie Coleman, but he is for real and could cause Overeem all kinds of problems. Still though - Reem via TKO.