Naming the best quarterback in the Big 12 is easy. Deciding who's second-best right now is near-impossible. So we went a step further: Why not rank them all?

This continues to be been a strange, unpredictable year for Big 12 quarterbacks. We’ve already seen 18 start at least two games. Only three schools -- Baylor, Kansas and Iowa State -- have started the same guy for every game, and even they've used multiple quarterbacks.

The following rankings judged how these QBs are playing right now as well as their full 2013 resumes. Deciding where to slot injured passers was tricky. You might not agree with all or any of these rankings, but this is how we'd size up the competition after nine weeks:

Considering how well he's run Baylor's high-scoring offense and the fact he leads the Big 12 in nearly every passing statistic, there is no debate that Bryce Petty is the Big 12's top QB. Peter G. Aiken/Getty Images

1. Bryce Petty, Baylor: Best passer in the Big 12 by nearly every statistical measure, first in FBS in yards per attempt, TD-INT ratio of 18-1 and it's only his first season of starting. The gap between No. 1 and everyone else on this list right now is tremendous. -- Max Olson

2. Case McCoy, Texas: The career backup has been a huge part of Texas' resurgence. In wins over Oklahoma and TCU, McCoy has Adjusted QBRs of 83.9 and 95.4. -- Jake Trotter

3. Davis Webb, Texas Tech: Webb hasn’t been perfect but he’s averaging 420.67 passing yards and 5.67 completions of 20 yards or more in TTU’s past three games. He’s been very solid for a true freshman. -- Brandon Chatmon

4. Daniel Sams, Kansas State: He might be too high at No. 4, but Sams is the best athlete of the bunch and already has 538 rushing yards on just 100 carries. Still has plenty to prove as a passer. -- MO

5. Blake Bell, Oklahoma: Great against Texas Tech and Notre Dame, bad against Texas. Has promising moments as a passer, firm grasp on the job and a chance to prove he's league's second-best QB. -- MO

6. Baker Mayfield, Texas Tech: The walk-on made waves while leading the Red Raiders to a 5-0 start before a knee injury sidelined him, but he threw more interceptions than touchdowns in his final three starts before the injury. -- BC

7. Clint Chelf, Oklahoma State: Chelf finally has the job again, but he'll have to complete more passes to keep it. His completion percentage this year is less than 50 percent. -- JT

8. David Ash, Texas: Ash is throwing again, and could be cleared to return soon. But will he resume his starting role? The way McCoy is performing, probably not. -- JT

9. J.W. Walsh, Oklahoma State: His combination of moxie and leadership is hard to deny but his struggles connecting on deep passes led to Chelf replacing him in the starting lineup. He remains a valuable piece as the disposal of Mike Gundy’s squad, however. -- BC

10. Jake Waters, Kansas State: Juco transfer is starting to get the hang of Big 12 ball and his own offense, and coming off an impressive showing against West Virginia. -- MO

11. Casey Pachall, TCU: Pachall has only played in seven games over the last two seasons. It would be difficult for anyone to overcome that level of rust. -- JT

12. Clint Trickett, West Virginia: Trickett’s season has mimicked the roller coaster nature of WVU’s offense, but he did lead the Mountaineers to a win over Oklahoma State, the highlight of their season. -- BC

13. Seth Russell, Baylor: Getting mop-up time and experience in every game this season and has 427 yards on 60 percent passing. Would he start for a couple Big 12 teams? -- MO

14. Sam B. Richardson, Iowa State: Richardson has been banged up all year, and it's shown. At some point, the Cyclones may be forced to go with the healthier option in Grant Rohach. -- JT

15. Jake Heaps, Kansas: The BYU transfer just can’t seem to find any confidence or rhythm for the Jayhawks passing attack, forcing Charlie Weis to start drastically experimenting with KU’s offense. -- BC

16. Trevone Boykin, TCU: Dual-threat sophomore has his moments, but five touchdowns and nine turnovers in 2013. Back to backing up Pachall and could play some receiver. -- MO

17. Trevor Knight, Oklahoma: Knight won the job out of camp, but lost it to Bell two games in after moving the chains ineffectively. Bell's performance against Texas Tech means Knight will remain on the sidelines. -- JT

18. Michael Brewer, Texas Tech: Generally expected to be the Red Raiders starter heading into fall camp, Brewer has been surpassed by the true freshman quarterbacks. -- BC

19. Paul Millard, West Virginia: Started first two games for the Mountaineers before losing his job, got another chance late against K-State. -- MO

20. Ford Childress, West Virginia: The freshman quarterbacked West Virginia's worst performance of the year, a 37-0 loss to Maryland, before suffering a pectoral injury that could keep him out the rest of the year. -- JT

21. Grant Rohach, Iowa State: He’s come off the bench to replace Sam Richardson in ISU’s last two games but has yet to surpass 100 passing yards in the game. -- BC

22. Montell Cozart, Kansas: True freshman is now splitting snaps with Heaps and got half the reps against Baylor. Can make plays in the run game and be a spark. -- MO

23. Michael Cummings, Kansas: Cummings started five games in 2012 but has lost the No. 2 spot to Cozart, and is unlikely to play much going forward with Heaps also part of the offense. -- JT

24. Tyrone Swoopes, Texas: The 6-foot-4, 245-pound true freshman made his debut on Saturday and is a talented rusher, but he didn't attempt a pass. If McCoy goes down, he'll have to take over. -- MO

25. Tyler Matthews, TCU: The Horned Frogs got so desperate for production they turned to the redshirt freshman on multiple occasions, yet he’s seen very limited game reps and hasn't completed a pass this season. -- BC