Big 12 Power Ranking: West Virginia still at the top

West Virginia RB Andrew Buie ran all over Texas to keep the Mountaineers at the top of the Big 12 power ranking. (AP)

Another week has gone by in the Big 12 and it's still clear that West Virginia's offense is amazing, Kansas State is solid and the rest of the Big 12 picture is not so clear.

1. West Virginia (5-0, 2-0 Big 12): In case you weren't convinced yet that West Virginia and its offensive explosion would continue to put up points week in and week out in the Big 12, Saturday's win at Texas put any doubts to rest. QB Geno Smith is the real deal. His receivers are the best in the Big 12. And West Virginia plays enough defense to run the table. Last week's power ranking: 1. Next up: at Texas Tech, Saturday, 3:30 p.m. ET (ABC).

2. Kansas State (4-0, 2-0 Big 12): Kansas State got off to a rocky start against Kansas -- slow starts have been the norm against lesser competition -- but by the end it was what we're used to seeing from both teams. In two weeks, the Wildcats travel to Morgantown and get their shot to move to the top spot. Last week's power ranking: 3. Next up: at Iowa State, Saturday, 12 p.m. ET (FX).

3. Texas (4-1, 1-1 Big 12): The Texas defensive line got after WVU's Smith and sacked him four times, but the run defense struggled for the second straight week, giving up 207 yards to Andrew Buie. The Horns continue to look impressive on offense, but their defense needs to improve. Even with the struggles on defense, this is by far the best team Texas has had since Colt McCoy graduated. Last week's power ranking: 2. Next up: vs. Oklahoma, Saturday, 12 p.m. ET (ABC).

4. Oklahoma (3-1, 1-1 Big 12): The sky is no longer falling in Norman after an impressive road win at Texas Tech. Landry Jones played mistake-free football, the offensive line played better, the defense forced three turnovers and the Sooners regained some confidence. We should know a lot more about this team after Saturday's game against Texas. Last week's power ranking: 4. Next up: vs. Texas, Saturday, 12 p.m. ET (ABC).

5 (tie). Baylor (3-1, 0-1 Big 12): Baylor had a bye week to figure out how to fix its defense after the shootout against West Virginia. A game against a Casey Pachall-less TCU could help build some confidence for that unit and get the Bears back on the right track. Last week's power ranking: 5. Next up: vs. TCU, Saturday, 7 p.m. ET (FSN).

5 (tie). Oklahoma State (2-2, 0-1 Big 12): Wes Lunt is expected to return to practice this week and Mike Gundy is once again not letting anyone know who his starting quarterback will be on Saturday when the Cowboys travel to Lawrence. J.W. Walsh proved against Texas he's capable. The Cowboys are one call away from a perfect conference record and the offense -- no matter the quarterback -- is still going to be a tough matchup each week for Big 12 defenses. Last week's power ranking: 5. Next up: at Kansas, Saturday, 3:30 p.m. ET (FSN).

7. Texas Tech (4-1, 1-1 Big 12): It was beginning to look like the Red Raiders might be a sleeper to finish near the top of the Big 12 this season. Now not so much. Even with Saturday's performance, it's clear Texas Tech's defense is not nearly as bad as last year. If QB Seth Doege takes care of the ball -- he had three interceptions against OU -- Tech should still be good for an upset somewhere down the road. Last week's power ranking: 8. Next up: vs. West Virginia, Saturday, 12 p.m. ET (FX).

8. Iowa State (4-1, 1-1 Big 12): Paul Rhoads' decision to go with Jared Barnett at quarterback worked out and he added another impressive win to his resume. The Cyclones are a poor man's Kansas State when they take care of the ball. TCU outgained Iowa State by 105 yards, but the Cyclones played smart football, sat back and let TCU make mistakes. That's a recipe that's usually good for a couple upsets a year. Last week's power ranking: 9. Next up: vs. Kansas State, Saturday, 12 p.m. ET (FX).

9. TCU (4-1, 1-1 Big 12): This could be a long year in the Big 12 whether Casey Pachall returns or not. The Horned Frogs not only have issues offensively, they gave up two big plays against one of the Big 12's worst offenses. Since they have already played KU, the Horned Frogs do not have any games left that they can circle as automatic wins. Last week's power ranking: 7. Next up: at Baylor, Saturday, 7 p.m. ET (FSN).

10. Kansas (1-4, 0-2 Big 12): QB Dayne Crist played his best half of the season and Kansas was able to keep up with K-State for a half on Saturday. But without top playmaker Tony Pierson who was injured near the end of the first quarter, KU's offense went stagnant and the defense, which had looked improved through the first four games, looked more like the 2011 version. Last week's power ranking: 10. Next up: vs. Oklahoma State, Saturday, 3:30 p.m. ET (FSN).

For more up-to-the-minute news and analysis from Big 12 bloggers C.J. Moore and Patrick Southern, follow @CBSSportsBig12 on Twitter. You can also follow C.J. (@cjmoore4) and Patrick (@patricksouthern).