My pick would be Jimmy Clausen.

His statistics are better than the other two QB's in the top three. He has led five fourth quarter comebacks three of which have ended in wins. In his last four games he has played with and injured foot and led four comebacks. Against USC he threw the first two TD's of the year against USC's defense. He has played flawless despite his injury and despite the poor job his defense is doing. The two losses are results of the defense and not him.