My prediction as of right now:
- Champions of the ACC, SEC, and Big Ten will all go. (Clemson/Miami, Auburn/Georgia, Wisconsin/Ohio State)
- Oklahoma gets the 4th spot if they win. If they lose, Alabama gets the 4th spot.
I do not think the committee will take a 1-loss Alabama over a 1-loss Big XII Champion Oklahoma, but I think they will take a 1-loss Alabama over a 2-loss conference champion or conference runner-up (even if, in the case of the SEC, it's Alabama over Auburn, who just beat Alabama).
I won't begin to guess at the seeding, because I don't think I could reasonably predict conference championship game winners -or- how those wins would affect the seeds. But it'll be the ACC, SEC, and Big Ten champs; Oklahoma has a win-and-in against TCU; and if Oklahoma stumbles then Alabama backdoors in.