1. Colt McCoy
He's at the top of everybody's list, and for good reason. He has kept the Longhorn offense going throughout the year, which put them past Oklahoma. His top stats are an 80 percent completion percentage, almost 1,900 passing yards, and 25 total touchdowns. He may not seem like a rusher, but he is Texas' leading rusher.
McCoy has done an awesome job of following up Vince Young's national championship, and he may have one of his own by the end of the year, along with a Heisman trophy.
2. Sam Bradford
Another star Big 12 quarterback here—he would've been the leader in the Heisman race if he had just beaten Colt McCoy and the Longhorns. He has over 2,500 passing yards and 26 total touchdowns. If Texas wins the rest of their games, then I don't see how he'll win this award over Colt McCoy.
3. Tim Tebow
The reigning Heisman winner has some more talent around him this year, which has caused his stats to drop. He did a great job blowing out LSU, which definitely helped his chances for a repeat. He will have to have an amazing second half, because his stats are about half as good as Sam Bradford's.
4. Knowshon Moreno
Without him, I'm not sure where Georgia's record would be right now. In their six wins, he averages 6.1 yards per carry, and in Georgia's one loss he averaged 3.8 yards per carry. Big difference right? If he produces on a consistent basis and pushes the Bulldogs through their tough late season schedule, then he could find himself right back at the top of the Heisman race.
5. Graham Harrell
I know that many people will argue with him being this low, but I haven't jumped on the Graham Harrell bandwagon yet. His toughest opponent so far has been Nebraska, and they only won by six points. I think he's just another system quarterback. Once I see him play against a decent defense, then I'll take another look his way.