If they beat Wisconsin...
Top wins...
Wisconsin
Penn State
Michigan State
Alabama too wins...
LSU
MIssissippi State
Texas A and M
The real problem for Alabama there is Florida State. A national title contender that they beat handily, and were beating handily even before they lost their QB and imploded.
But...
Alabama lost a competitive game at very good Auburn. Only loss.
Ohio State lost big at home with Oklahoma, and were hammered at Iowa. Two big losses. They are good, but in terms of selecting to play for the national title, that should be disqualifying. Especially after they whined last year for inclusion over a two loss Penn State who beat them, because PSU lost one game big to Michigan.
Even with winning, how can Ohio State possibly advance over Oklahoma or Alabama? Not blindly looking at head to head...but OU did not lose a bunch of other games to justify ignoring the head to head. They lost one game. Close. To a decent if not great Iowa State.