Honestly, I think Northwestern is a completely worthy opponent for the B1G Championship. Venrick Mark is an absolute weapon and both QBs were very impressive.
But I don't see you guys getting past Wisky. It's not that Wisky is better--I don't think they are. It's that you guys will have to play a night game in Madison after your huge game against Ohio State. It's really, REALLY tough for CFB teams to get up for big games two weeks in a row, and it's even harder when you have to go on the road (at night) for that second game. Camp Randall is going to be a zoo.
Making matters worse, Wisky is coming off their bye week. They'll be rested and ready, with a well honed game plan. As a Northwestern grad school alum I'll be rooting for the Wildcats against Wisky. But it ain't gonna be easy.