Gotta go with the field goal, that game literally broke me down. I didn't sleep the night before (not because of the game mind you, I'm not that hardcore.), so I was watching it having not slept in 36 hours. I actually think that Wilhoit's kick was more impressive than the Rose Bowl kick simply because he did it after missing that PAT, although the Rose Bowl kick definitely won the bigger game.
All I know is, having experienced the agony of defeat and the thrill of victory within a 5 minute span, all on no sleep, I just stopped functioning completely.