If TCU and Baylor win out won't Baylor be the Big 12 Champ (due to the head to head)? if so then they would be first in line with three top 25 wins and a conference championship, TCU would be next with 4 (count em) top 25 wins but no conference championship (the head to head with Baylor would count as well) and Ohio state would be third with 2 top 25 wins and their own conference championship.
Unless the committee sees conference championships as more important than top 25 wins - then Ohio St. would be second.
Any of the three would depend on Mississippi State losing the egg bowl.
Clear as mud - isn't it?
Like I said first we need an eight team playoff.