After yesterday's events, the top 4:
Bama
Michigan
Clemson
Washington
The losses of Baylor/WV open the door for a 1 loss team from the B10/SEC. Perhaps Ohio State beats Michigan then wins the B10. Or Florida beats Bama so both sit at 1 loss. I suppose one could make a case for 1 loss Louisville if Clemson wins the ACC but I don't think that happens as Louisville doesn't have the "name recogition" of the others.