Updated 12:26 p.m. ET, Sunday, Dec. 16

Here are PFW's Week 15 QB rankings:

1. Drew Brees, Saints vs. Buccaneers
2. Tom Brady, Patriots vs. 49ers
3. Aaron Rodgers, Packers at Bears
4. Peyton Manning, Broncos at Ravens
5. Eli Manning, Giants at Falcons
6. Matt Ryan, Falcons vs. Giants
7. Josh Freeman, Buccaneers at Saints
8. Cam Newton, Panthers at Chargers
9. Matthew Stafford, Lions at Cardinals
10. Andy Dalton, Bengals at Eagles                         
11. Philip Rivers, Chargers vs. Panthers
12. Brandon Weeden, Browns vs. Redskins
13. Carson Palmer, Raiders vs. Chiefs
14. Ben Roethlisberger, Steelers at Cowboys
15. Andrew Luck, Colts at Texans
16. Matt Schaub, Texans vs. Colts
17. Tony Romo, Cowboys vs. Steelers
18. Russell Wilson, Seahawks at Bills
19. Joe Flacco, Ravens vs. Broncos
20. Colin Kaepernick, 49ers at Patriots
21. Jay Cutler, Bears vs. Packers
22. Chad Henne, Jaguars at Dolphins                      
23. Ryan Tannehill, Dolphins vs. Jaguars
24. Kirk Cousins, Redskins at Browns (ADDED)
25. Nick Foles, Eagles vs. Bengals
26. Sam Bradford, Rams vs. Vikings
27. Ryan Fitzpatrick, Bills vs. Seahawks
28. Jake Locker, Titans vs. Jets
29. Mark Sanchez, Jets at Titans
30. Christian Ponder, Vikings at Rams
31. Brady Quinn, Chiefs at Raiders
32. Ryan Lindley, Cardinals vs. Lions 

Not listed: Robert Griffin III, Redskins

We base our rankings on the following scoring system: For skill-position players, one point for every 10 rushing/receiving yards, one point for every 30 passing yards, six points for a TD run or catch, four points for a TD pass, two points for a two-point conversion run or catch, two points for a two-point conversion pass. For kickers, three points for FGs of 18-39 yards, four points for FGs of 40-49 yards, and five points for FGs of 50-plus yards. Defensive rankings are based primarily on points allowed, yardage allowed and sack potential.

Glossary of notations

INJ — player has an injury that may affect productivity or availability.
ILL — player has an illness that may affect productivity or availability.
UP — player was moved up on draft board after original posting.
DOWN — player was moved down on draft board after original posting.
Not listed — player is temporarily sidelined due to injury or suspension but otherwise would be ranked.
ACTIVE — on game day, player has been designated active (posted shortly before kickoff, when available).
INACTIVE — on game day, player has been designated inactive (posted shortly before kickoff, when available).

Players and/or notations added after the original posting are shown in boldface.

Note: Remember to check back for late-week and weekend updates, as well as game inactives (when available) in the 90 minutes preceding the 1 p.m. Sunday kickoffs.