These are good. It's going to be hard to come up with a list that doesn't leave something out.
My own criteria is that the comeback had to be in a high-stakes game.
For this reason alone I would put these games ahead of the Minnesota game:
1) Holy Buckeye: I can't think of a more clutch, gutsy play than a bomb in OT on 4th down. That was insane...kept us on the NC path. That play defined that 14-0 season & team.
2) The NC Game vs. Miami - 3 amazing plays: 4 & 14 conversion, Mo Clarrett strips the ball, Cie Grant sack.
3) Purdue w/ Kenny G sealing the win...preserve the 12-0 season. Great team win/story.
4) Tie vs. Wisconsin in Camp Randall. Joey Galloway streaking down sideline late in game to make it 14-14. I believe it was 1991 & both teams entered the game undefeated. Night game with lots of hype. Not a win, but a high stakes game.