I see Bisping pulling out the upset decision. Even though Belfort is dangerous, I do believe his best days are past him and Bisping is in his prime. It's still a bad matchup for Bisping but I see Belfort losing 2d and 3rd rounds, if Bisping can stay conscious and can stay on point. Bisping wants a shot badly and I think he'll bring his A game.
"Let them see that their words can cut you, and you'll never be free of the mockery. If they want to give you a name, take it, make it your own. Then they can't hurt you with it anymore." - Tyrion Lannister