for me , there have been several. The run by Tony D was amazing. All the comebacks by Roger S. The Superbowls of course. And one that hasn't been mentioned.. the NFC Title game that we lost, ending our chance of a 3peat in the 90's. Remember this game, against the 49'ers. Early turnovers got us down 21-0 in the first quarter but that team never quit, they battled the whole game, and even though they lost the game, I was never more proud of a Dallas Cowboy team. And that game reminded me why I am a Cowboys' fan. The never say die attitude, the heart that has endeared this team to me since i was 3 yrs old. Even in a loss, we proved again, why we are America's Team. As far as the best performance,, that goes to Emmitt Smith against the Giants, He showed more heart in that game than i have ever seen a player show esp in the day of overpaid nfl players. That was an amazing thing to watch.