| Year | Chiefs | Broncos | Chargers | Raiders |
| 2013 | Alex Smith (9-1) | Peyton Manning (9-1) | Philip Rivers (4-6) | Terrelle Pryor (3-5); Matt Flynn (0-1); Matt McGloin (1-0) |
| 2012 | Matt Cassel (1-7); Brady Quinn (1-7) | Peyton Manning (13-3) | Philip Rivers (7-9) | Carson Palmer (4-11); Terrelle Pryor (0-1) |
| 2011 | Matt Cassel (4-5); Tyler Palko (1-3); Kyle Orton (2-1) | Tim Tebow (7-4); Kyle Orton (1-4) | Philip Rivers (8-8) | Carson Palmer (4-5); Jason Campbell (4-2); Kyle Boller (0-1) |
| 2010 | Matt Cassel (10-5); Brodie Croyle (0-1) | Kyle Orton (3-10); Tim Tebow (1-2) | Philip Rivers (9-7) | Jason Campbell (7-5); Bruce Gradkowski (1-3) |
| 2009 | Matt Cassel (4-11); Brodie Croyle (0-1) | Kyle Orton (8-7); Chris Simms (0-1) | Philip Rivers (13-3) | JaMarcus Russell (2-7); Bruce Gradkowski (2-2); Charlie Frye (1-2) |
| 2008 | Tyler Thigpen (1-10); Damon Huard (1-2); Brodie Croyle (0-2) | Jay Cutler (8-8) | Philip Rivers (8-8) | JaMarcus Russell (5-10); Andrew Walter (0-1) |
| 2007 | Damon Huard (4-6); Brodie Croyle (0-6) | Jay Cutler (7-9) | Philip Rivers (11-5) | Josh McCown (2-7); Daunte Culpepper (2-4); JaMarcus Russell (0-1) |
| 2006 | Trent Green (4-4); Damon Huard (5-3) | Jake Plummer (7-4); Jay Culter (2-3) | Philip Rivers (14-2) | Andrew Walter (2-6); Aaron Brooks (0-8) |
| 2005 | Trent Green (10-6) | Jake Plummer (13-3) | Drew Brees (9-7) | Kerry Collins (4-11); Marques Tuiasosopo (0-1) |
| 2004 | Trent Green (7-9) | Jake Plummer (10-6) | Drew Brees (11-4); Doug Flutie (1-0) | Kerry Collins (3-10); Rich Gannon (2-1) |
| 2003 | Trent Green (13-3) | Jake Plummer (9-2); Danny Kannell (0-2); Steve Beuerlein (1-1); Jarious Jackson (0-1) | Drew Brees (2-9); Doug Flutie (2-3) | Rich Gannon (2-5); Rick Mirer (2-6); Marques Tuiasosopo (0-1) |
| 2002 | Trent Green (8-8) | Brian Griese (8-5); Steve Beuerlein (1-2) | Drew Brees (8-8) | Rich Gannon (11-5) |
| 2001 | Trent Green (6-10) | Brian Griese (8-7); Gus Frerotte (0-1) | Doug Flutie (5-11) | Rich Gannon (10-6) |
| 2000 | Elvis Grbac (7-8); Warren Moon (0-1) | Brian Griese (7-3); Gus Frerotte (4-2) | Ryan Leaf (1-8); Jim Harbaugh (0-5); Moses Moreno (0-2) | Rich Gannon (12-4) |
| 1999 | Elvis Grbac (9-7) | Brian Griese (4-9); Chris Miller (2-1) | Jim Harbaugh (6-6); Erik Kramer (2-2) | Rich Gannon (8-8) |