Hmmmmm....
5. 2004 @ Mich double digit collapse in Ann Arbor
4. 2007 vs. Mich 10 point 4th quarter lead loss
3. 2005 @ OSU, I think it was the game where John L Smith slapped himself, I know it's the game where we were up 17 on OSU, then some AWFUL playcalling right before half time allowed them to tie it or get within 3, and John L said something along the lines of "the kids are playing their tails off and the coaches are screwing it all up!"
2. 2005 vs. Mich, we were down, came back to tie the game on a fumble scoop and score (loudest I've ever heard Spartan Stadium), only to lose in OT b/c we couldn't kick a FG
1. 2006 vs. Notre Dame, night game in the pouring rain. We were beating their ass the entire game and they came back and won. I remember there was a simultaneous catch on the final play that was ruled an INT, and when the refs were announcing it/discussing it, you could hear a PIN DROP, the stadium was in shock that we just lost the game.
Those 3 loses to UM are pretty much interchangeable...each were as bad as the next.