Some people say Florida will win it all but with the better defence in Oklahoma I believe they can win it all. And I think the same about Texas if they go undefeated but that will be difficult for them even with the easier schedule than the Sooners.
Florida will more than likely be upset once this year as the SEC is like the Big 12 in strength. I believe one loss shouldn't keep teams out of the BCS game if they play in the big 12 or SEC. The big 10 and Pac 10 have no conference championship game.
That should take away from their ranking.