Mine:
2013 FSU, because it was for a championship
Final 4, because we were robbed, it would have put us in the championship game, and we had already beaten the best teams in the tournament.
1988 - earthquake game at LSU, we would probably have at least played for the MNC
1985 Iron Bowl - because I was there.
2023 Iron bowl is high on the list now because it still hurts, but in the grand scheme of things this game was not nearly as meaningful as the top 3. A win would not have given us a conference championship or eliminated their chance at one. It would have knocked them out of the playoffs and stopped their winning streak against us, but that's about all. Their 5 stars made one more play than our 3 and 4 stars. Of course, if they end up winning another championship, it will hurt more that we missed our chance to knock them off.
Other games I remember are the one against UGA in 2002, and another one against LSU that had a similar miracle catch, where we snatched defeat from the jaws of victory.