Right now is hard to say given schedules that are incomplete and teams will play better competition later on, but I'll say in some order:
OSU
LSU
Clemson
Baylor
As far as my prediction at the end of the season:
OSU
Bama
Clemson
TCU (only because of Baylor's QB getting hurt)
Others to consider:
LSU if they beat Bama
Notre Dame if they finish off the rest of their schedule beating Temple, Pitt and Stanford, and other teams lose ahead of them.
MSU if they shock the world and upset OSU (won't happen, but I'll put it in consideration).