Ranking Heisman front-runners

Entering 2012, Matt Barkley has all three crucial Heisman keys working in his favor. Kirby Lee/Image of Sport/US Presswire

Last week we gave you 18 Heisman candidates broken down into three groups.

This week, we go more in depth on the five players we designated last week as the preseason front-runners for the 2012 season.

Using the Heisman Predictor as our guide, we've ranked the top five candidates based on who currently has the best chance to hoist the trophy in New York City at season's end.

1. Matt Barkley, QB, USC Trojans