A few honorable mentions before we start.
Matt Schaub was on pace for a career year before going out with a season-ending injury in Week 10.
However, he led his Texans to a 7-3 record and a very good shot at winning their division and making the playoffs. It's a shame that his season was cut short so soon.
Cutler is in the same position—he was having a great year before going out with a thumb injury that could take him out for the rest of the regular season.
While he may return for the playoffs, the Bears may be in trouble with Caleb Hanie starting at quarterback. Still, Cutler led the Bears to a 7-3 record, giving them a fighting chance for the playoffs.
Tim Tebow is an interesting player, and while he doesn't crack my top 10, his 5-1 record as a starter shouldn't be dismissed.
Tebow's numbers have been puzzling this season—he has poor numbers in the first three quarters of the game, but ends his game playing at a high level. Tebow has helped lead his Broncos offense to improbable wins, but their defense should get a lot of the credit, as well.
Andy Dalton's numbers aren't great at first glance, but considering that he, a rookie quarterback, has led his Bengals to a 7-4 record when they were largely cast off as a non-contender before the season began, is certainly an impressive accomplishment.
He is definitely a front-runner for Rookie of the Year.