I brought this up on the poll question the other day, and it didn't spark a conversation. But I think it's an important discussion. Does a conference HAVE to split its conference up into divisions if it reaches 12+ teams? I was under the impression that all it means is that a conference is then allowed to host a conference championship game, but it certainly doesn't have to. And if it doesn't have to, then are there NCAA stipulations about the representatives coming from divisional play?
What I'm getting at, of course, is a 4th option that the B1G did not propose in their survey, which is "No divisions - the two teams with the best records meet in Indianapolis for the B1G championship game." I think it bears some consideration considering this won't be the last time a 4+ loss team gets a chance to upset a 1- or 2-loss team to get the B1G bid to the major bowls/playoffs. The SEC has seen 3-loss teams in their championship game several times (some resulted in an upset), so it's not crazy.
I obviously favor the east-west split, as does probably 80% of people who took the survey, but I think I would have favored a no-division option had it been presented. I think that would give a lot more freedom and fairness in scheduling.