After looking it over, Michigan does not 100 percent control its own destiny, but it’s close.
Assuming Mich wins out, it’s 12-1, conference champ.
Worse case, there’s three undefeated teams ahead of it: Bama, ND, Clemson.
So the best competition would be a one-loss Big 12 champ or one loss PAC-12. So that means it could only be WSU, Oklahoma or Texas. Michigan goes if it’s WSU, Oklahoma or Texas are more of an issue. Michigan will have the best loss and most excusable one.
Michigan wouldn’t get jumped by a one-loss Bama, unless ND fell apart, and that takes a playoff contender out of it. I think a one-loss ND is the most tricky, but even then, enough teams will lose that 12-1 will be good enough. (I don’t think UM goes 12-1, but we’ll see)