re: Its either Clemson or the Big 10 Champ

Current rankings:
1) Bama
2) OSU
3) Clemson
4) Washington

If Bama and Clemson win today, the top four rankings will most likely be the same as they are now.

The CFP Commitee ranks the teams based on their win/loss resumes (strength of record). Conference championship is merely one of several tie breakers used only if teams' resumes are essentially equal.

Washington's resume has now improved enough to secure them at #4, but their resume still won't be better than or equal to any of the three teams ranked ahead of them (assuming Bama & Clemson win).

Also, if Bama and Clemson win, the winner of the Penn State vs. Wisconsin game won't get in, because adding that one high-quality win to their resume still won't be enough to make up for having two losses.

Bottom line: If Bama & Clemson win today, the current top four is not likely to change at all.