Over at The Power Rank, Grantland's Ed Feng has put together a nice interactive bracket with his tournament predictions, based on his own ranking system. If you go to his site and click on individual teams, you'll see the odds that they advance through various rounds. If you click on individual games (the circles), you'll see the comparative chances that different teams will get there.
As you can see above, Feng gives Florida a 7.9 percent chance to win it all, which is well behind Arizona (11.3 percent), and just ahead of Louisville (7.6 percent). For a contrasting model and graphical style, you can check out the interactive bracket posted on FiveThirtyEight. Nate Silver is more bullish on the frontrunners, giving Florida a 14 percent chance to win it all, second only to Louisville (15 percent) and just ahead of Arizona (13 percent):