I've been to about 6 of the bowl games but the two most memorable were both the Charlotte games.
Definitely wanted to be at the first bowl game ever and while we didn't win, it was a great experience. It seemed about 5k USF fans and 60K NC State fans. It was kinda fun being the enemy and everyone you saw in green was your new friend if you weren't friends already.
What also made this trip unique was we did it Smokey and the Bandit style. My friend and I (another USF grad) had to work til midnight at the USPS plant in St Pete and we left straight from work. Got to Bojangles off I-75 in Charlotte for breakfast, tailgated, watched the game and made it back to my friend's New Year's Eve Party in Brooksville just before midnight....like I said, Smokey and the Bandit style as the game ended just after 3pm or so.
The second Charlotte bowl game against Clemson was Smokey and the Bandit part II. This time I was already up in the area as I flew to a friend's house in Atlanta and stayed the night. The next day we drove to Charlotte to enjoy the bowl festivities the night before the game with other Bulls fans. I believe the bowl game ended sometime around 330pm-ish because directly from this game, we drove south as fast as we could back to Atlanta to try and catch the 7:30pm kickoff for #19 FSU vs #23 South Carolina in the Chik-Fil-A Bowl. We ended up missing about half of the first quarter but it was pretty cool doing two bowl games in a day.