Who Is The Best AFC QB?

Based upon the best statistic ever (hmm, sarcasism don't translate well on a blog) sacks per 100 passing attempts, I've decided to do a brief analysis of the great AFC QBs preemptively for my new poll.

S/100
Big Ben: 8.72
Philip Rivers: 6.23
Matt Schaub: 5.21
Tom Brady: 3.56
Peyton Manning: 2.06

YPA
Big Ben: 8.33
Peyton Manning: 8.17
Philip Rivers: 8.17
Matt Schaub: 8.10
Tom Brady: 7.76

Completion Percentage
Peyton Manning: 69.8
Big Ben: 68.9
Matt Schaub: 67.1
Tom Brady: 66.4
Philip Rivers: 63.2

Passer Rating:
Peyton Manning: 102.7
Tom Brady: 100.4
Matt Schaub: 98.9
Philip Rivers: 98.7
Big Ben: 98.6

TD/INT ratio:
Tom Brady: 3.33
Petyton Manning: 2.33
Philip Rivers: 2.83
Matt Schaub: 2.11
Big Ben: 1.70

So who is the best AFC QB? I don't think this one is clear. Peyton clearly takes advantage of his superior O-line but does the increase in sacks make guys like Rivers and Roethlisberger better than Manning? I don't know. But please, when you vote, take sacks and O-line into account.