SEC Champion (Alabama or Georgia)
ACC Champion (FSU or Georgia Tech)
Big 10 Champion (Wisconsin or Nebraska/Michigan)
Big 12 Champion (KState, Oklahoma, Texas, or Oklahoma State)
Big East Champion (Rutgers, Louisville, Syracuse(?))
Pac-12 Champion (Stanford/Oregon or UCLA)
Notre Dame
Those are guarantees at this point. And there are 3 at large bids remaining.
SEC will get one of the at large bids. If Oregon does not make the Pac-12 Championship game (which is probable) the PAC-12 will get an at large bid. This leaves one bid available to the ACC, Big 10, Big 12, and Big East.
If Clemson beats South Carolina, I think they will get in ahead of Oklahoma. If Clemson loses, and Oklahoma wins out (and KState beats Texas to get the auto-bid), I believe Oklahoma would get in with 2 loses. (Plus Oklahoma is a big name and BCS Bowls only have to choose teams in the top 14, they don't have to choose the top teams (see 2011/12: #11 Virginia Tech vs #13 Michigan instead of #7 Boise State, #8 KState, or #12 Baylor))
A problem could arise out of the Big 10. If Wisconsin wins the auto-bid, and Nebraska is still in the top 14, would a BCS bowl pick a 3 loss Nebraska over Oklahoma?
There will be more clarity when the new BCS rankings come out. How far Oregon and KState fall, how far Stanford rises.
Is Oregon St eliminated from the Pac 12 Champioship game? If Oregon St beats Oregon and Stanford loses to UCLA they all would have two conference loses and tie for the Pac 12 North tittle, not sure how tiebreaker works.