ESPN College Football

Editor's note: Each week this season, ESPN.com will ask one of its Heisman Watch voters to explain his or her picks.

Let me say this up front: This is my 18th year voting for the Heisman, and it's the most confusing one in that time. On the one hand, I cannot find anyone I think truly deserves to be at the top of the ballot. On the other hand, I have a hard time holding it to just five guys.

For example, this week I'm excluding the guy I voted for last year, Colt McCoy. I feel bad about that -- but as of today I cannot move out any of these other guys to make room for him.

I honestly have no idea who will be on my real, three-man ballot come December. If this season doesn't clarify itself soon, I might just vote for a long-snapper.

1. Kellen Moore, Boise State: He leads an undefeated, top-10 team. He leads the nation in passing efficiency, and the race really isn't close. What's not to love about 24 touchdowns and two interceptions? Roughly one out of every nine passes is a touchdown, by far the best TD percentage in America. The only knock is the competition, which won't get any tougher the rest of the way.

2. Tim Tebow, Florida: Those suffering from Tebow Fatigue rush to bash his passing numbers. But he does rank eighth nationally in efficiency -- and once again, that tells only a fraction of the story. Tebow also has run for 551 yards and eight touchdowns in the best defensive conference in the country. And his winning streak (18) now stretches well beyond a year.

3. Mark Ingram, Alabama: If I hadn't been there to witness his first collegiate fumble and first no-touchdown game of the year against Tennessee, he might be higher on the list. As it is, he's had a tremendous season running behind a rebuilt offensive line for 1,004 yards in just eight games. And don't discount his work as a receiver (19 catches for 186 yards and three more TDs).

4. Case Keenum, Houston: He's the Numbers Candidate, overwhelming the competition with sheer statistical productivity: a nation-leading 3,293 passing yards plus 25 touchdowns and only five interceptions. But that's not all: He also has the Cougars in the top 15 nationally. Of course, a lot of quarterbacks would like to play touch football in Conference USA.

5. Golden Tate, Notre Dame: This spot could go to the quarterback who gets him the ball, Jimmy Clausen. But I believe Tate often has made Clausen look good, certainly never better than when he outfought triple coverage for that catch against Washington State on Saturday night. Notre Dame's passing attack never took the expected hit when Michael Floyd got hurt, largely because Tate has stepped up his production. He's third nationally in receiving yards and has scored 11 touchdowns receiving and rushing.