Above, SB Nation Selection Committee host Ryan Nanni is joined by Luke Zimmermann to explain and critique our group rankings for this week, which are as follows:

WEEK 2 No. 1 No. 2 No. 3 No. 4 Alex Kirshner Bama Clemson FSU Houston Bill Connelly Bama Ohio State FSU Houston Bud Elliott Bama Clemson FSU Ohio State Dan Rubenstein Bama Ohio State Michigan FSU Godfrey, Steven Bama Houston Texas FSU Jason Kirk Bama FSU Ohio State Houston Jeanna Thomas Bama Clemson Ohio State FSU Luke Zimmermann Bama Wisconsin Texas FSU Matt Brown Bama FSU Houston Colorado Morgan Moriarty Bama FSU Clemson Ohio State Ryan Nanni Bama Houston FSU Texas Sarah Hardy Bama FSU Clemson Houston Spencer Hall Bama FSU Clemson Ohio State Wescott Eberts Bama Texas Houston FSU

Which gives us this for now:

And that will almost certainly change next week, and all weeks thereafter.

Alabama is the obvious choice for a unanimous No. 1, having flattened the defending Pac-12 South and Conference USA champions with ease.

I agree with Florida State at No. 2 after the Noles overcame a depleted offensive line and QB inexperience to race past Ole Miss in Week 1.

Clemson at No. 3 seems based largely on how good we believe the Tigers to be, rather than what they've proved on the field so far this year, which is fine. Remember that the actual Playoff committee's members are instructed to select the four best teams, not the four most deserving teams.

Houston's an interesting choice for No. 4, and you can make the case, as Luke does, that UH's win over Oklahoma was the best of the season so far.

Ohio State appears to be the first team out, after Week 2, but that'll change rapidly if OSU can match Houston's win over OU, and do it in Norman.

Who's your top four right now?