So as far as who we root for / against, I think it should be this way (maximizes the number of losses for all other teams in contention):

1) Root against FSU, Oregon, and Alabama the rest of the way.
2) Root against Auburn until the Iron Bowl. If we beat Alabama, the Iron Bowl shouldn't matter. If we lose to Alabama, we need Auburn to win the Iron Bowl.
3) Root for Kansas State against TCU. Kansas State still had WVU and Baylor left, whereas TCU has no one of note left on their schedule.
4) Take your pick in regards to Michigan State - OSU, but it is in MSU's best interests for one of them to win the regular season matchup, and the other to win the likely rematch in the B1G title game.
5) Root for ASU against Notre Dame. Their schedule is tougher going forward, and they have a likely championship date with Oregon.