I cannot see how super conferences, with teams numbering greater than 12, how you can determine the two best teams.
For example, tOSU goes 9-0 with a win over Nebraska, Michigan goes 8-1 with loss to tOSU but doesn’t play Nebraska, NU loses to tOSU and loses a tie-breaker because they played a tougher non-conference schedule and lost a game there.
I am sure there are many scenarios where determining the first and second place teams cannot be easily determined … especially when you include protected rivalries … is it fair tOSU has to/gets to play Michigan while Purdue gets Indiana?
Strength of schedule will never be balanced, divisions at least allowed conferences to have a round robin schedule where everyone played everyone else within the division.
I'm certain a tiebreaker format can be devised to work in creating the top 2 teams -- but it likely will be more complex than current tiebreakers. Head-to-head, like opponents (if like opponents even exist), heck, maybe the last straw applied is something like point differential. Or Sagarin ratings. Whatever.
Will everyone be happy? Nope. Some aren't now, some won't be with the change, some never will be. Fair? Probably not -- as some teams will clearly have more difficult schedules than others.
Anyhow, that's just to determine the conference champ. The playoff wouldn't necessarily have to go with the two teams in the conference championship game (though the winner should be automatic).
It's also possible that if conferences grow to say 20 teams -- maybe the conference itself will have a 4-team playoff to determine their champion. Nothing to say they can't with 16 teams. It's really up to each conference to determine what's best for them -- which is a change from the NCAA determining what's best for all.
I'll just roll with whatever is decided -- since my input has zero value.