This is a really good question. At the time of the victory, I would say that the Colorado win last year was huge being as the game was on national tv and we were 10 point underdogs against the North division champions but since Colorado has been in a slump ever since, that win loses some of its muster. The Michigan victory was huge but everyone uses the excuse that Michigan "didn't want to be there" card when talking about this game. The aTm game was a huge victory as it was a road victory in a hostile environment against a ranked team. All three are about equal in my eyes.