97 Fiesta bowl.
03 was more significant, but that night in Arizona was just amazing. The pep rally, the pregame festivities, being in the nice warm arizona weather in the dead of winter(I remember going swimming outdoors,) the painting of the "A" that overlooks the stadium purple and white, the slaughtering of McNabb and the Syracuse Orangeman, the complete takeover of that stadium (what was it 50k fans or something?) and then an amazing concert by Kansas immediately following the game. (My first concert, and I was front row.)