1. J.J. Watt, Houston Texans
No player is dominating his position more than Watt. In a season when you can make a strong case that the top quarterbacks have been a little uneven (great one month, good the next), Watt was the biggest difference-maker of the first half.
2. Matt Ryan, Atlanta Falcons
3. Peyton Manning, Denver Broncos
This is the highest Manning has been on the list. He was pinpoint with his accuracy against the Cincinnati Bengals, got picked off a few times and then quickly erased his mistakes. He might be only No. 3 on the list for the first half, but he's the favorite to be on top by season's end because of his schedule ahead.
4. Ben Roethlisberger, Pittsburgh Steelers
5. Tom Brady, New England Patriots
How high are Brady's standards? He's on pace for 4,800 passing yards, 32 touchdowns and six interceptions. Yet people are saying he's slipping.