I think it's clear UFC wants Bisping to win to set up Bisping/Anderson, a money fight. Just my opinion, but I think this is part of why Mike's ranked so highly on this site - that he's seen as a upcoming contender regardless of his wins. And I think that projects to fans as well, them thinking Mike's better than he really is.
I see Bisping as a good fighter who's below the very elite, but above the rest. A top 10 MW, who will struggle with the top 5. Vitor's in the highest class along with Anderson, Sonnen and Weidman. Those are the most skilled MW's in the world, Bisping is a tier behind, which will show tonight.
Vitor's great in 2 areas, Bisping's good in all, but great in none. Guys like him, Marquardt, Forrest, Franklin and Nelson won't win a UFC belt nowdays. You need to be exceptional in at least one area, which all current champs are.