Although I don't like the guy attitude, but I think he'll win this fight. Bisping is a very durable fighter, well rounded. Belfort has speed and power advantage, but he gas too quickly, won't able to keep up with Bisping pace in the latter rounds.
If Bisping can avoid getting hit in the face the first 2 rds, by taking Belfort down, quick footwork or clinching. Belfort's striking ability won't be a serious threat afterward.
Bisping by Unanimous decisions or TKO in the latter rounds. Belfort has puncher chance early on.