I don't look too far into Stoops' BCS record.
When USC shows up to play, they destroy even ranked teams -- and that particular USC team was stacked. I have to think there's some sort of let down in having to play Boise State and West Virginia in the Fiesta Bowl when you're one of the favorites to win the National Championship every year. Oklahoma will be fine.
Florida tore through the SEC -- but this is a very down year for the SEC. Their win over LSU doesn't look all that impressive anymore, their win over Georgia doesn't look as impressive anymore, Florida State's not so great. I think playing in the SEC also skews their defensive numbers a bit, since there's no real great offenses in the SEC -- meanwhile Oklahoma played in a conference that had five of the top ten offenses. And that Oklahoma offensive line is the best in the country, they won't touch Bradford.
Oklahoma is easily the best offense I've ever seen. They lack a bit on the defensive side, but with a month to gameplan, they should be well enough on that side.
Should be a great game either way. I'll be in Florida for it, fortunately, so that should be some fun.