Barring some unforeseen catastrophe in Waco or Fort Worth, TCU and Baylor will exit spring ball still as the Big 12 co-favorites heading into 2015.

But the following question will linger well into the summer: Who in the league is most equipped to challenge their conference superiority?

It’s a question sure to foster several opinions, which is why we’re putting it you in our weekly Big 12 poll.

Oklahoma State debuted as the No. 3 team in our Way-Too-Early Big 12 Power Rankings. The Cowboys seem to have a budding standout at quarterback in rising sophomore Mason Rudolph. Oklahoma State returns several starters on either side of the ball as well. But the Cowboys also struggled for much of last season. And without a miraculous comeback in the regular-season finale in Norman, which catapulted Oklahoma State to its bowl victory over Washington, the Cowboys’ 2015 outlook wouldn’t be looking so sunny. This is still a team with much to prove.

Oklahoma was viewed as the co-favorite along with Baylor heading into the 2014 season. The Sooners were in the top five of the polls during the first half of the season, too, before the bottom fell out. The Sooners have some major questions, notably at quarterback and in pass defense. But Samaje Perine and Sterling Shepard are All-American-caliber performers and whoever wins the quarterback battle could flourish in Lincoln Riley’s air-raid system.

Texas has an even bigger question at quarterback. Tyrone Swoopes struggled down the stretch last year, and Jerrod Heard will only be a second-year freshman. The Longhorns will also be replacing several of its best players off last year’s team. Charlie Strong, however, has recruited well. And if the young pieces come along fast, Texas could be a factor.

TCU overshadowed the run that West Virginia made last year until a late-season slide. The Mountaineers have to replace a lot of offensive firepower in wideouts Kevin White and Mario Alford. But Skyler Howard received invaluable experience at quarterback filling in for Clint Trickett. And behind safety Karl Joseph, the Mountaineers should feature the best defensive backfield in the league.

Kansas State doesn’t have much coming back off a team that was a Big 12 title contender going into the final week of last season. The departures of Tyler Lockett, Jake Waters and several other key contributors won’t easily be replaced. But the presence of Bill Snyder alone warrants the Wildcats a spot in this poll.

So, midway through spring ball, who is the biggest threat to TCU and Baylor?

Let us know what you think by casting your vote.