Obviously, but is it better for the Big12 if there is an 8 or 12 team playoff?
As it stands today, my guess is the Big10 & SEC would favor 12 teams as they likely feel they could get at least 3 (Big10) or 4 (SEC) teams in a playoff.
A compromise on an 8 team playoff for the Big10/SEC might be ability for a P5 to lose an auto-bid if it doesn't win a playoff game. If any P5 conference doesn't win a playoff over a 3-4 year period, then they don't deserve an auto-bid.
How does that work realistically? Leagues that get one team in must bat 1.000 over time to keep their AQ while other conferences get 3 or 4 uncontestable bids?
Then there's the huge advantage that 1st round byes and campus sites will provide...