Most fun? 1998 vs Washington. Was at College Game Day before the game and then in student section with my younger brother who was going to college at the Univeristy at the time and scored another ticket for me. The Student section was amazing.
Most satisfying? 1995 Iowa State game. Shut down their Heisman Hopeful and gained 776 yards on them. A solid performance.
Loudest? 1995 game vs Washington ST. Had KFAB tuned in as well, and they were even saying at the time it was one of the loudest they remember.
Most disappointing? 2002 Colorado vs Nebraska. 1 year after the 62-36 loss in Colorado. It didn't help that there were some loud and annoying (is there any other kind) Colorado fans in front of us. As the game went on thru the 2nd half, there was actual booing going on in the stadium. Something I hadn't heard direct at the Cornhuskers before.
Best OT? I have not attended a live game that has gone into OT.