I always liked the Northwestern fans - especially in the days when the Student body would make up signs with self-deprecating humor about the state of their program.
Personally I know several fans of Pitt and Penn State and never had any poor interactions with them at all. Perhaps I am lucky, but the Penn State fans I talk to are always very well up on the true strengths and weaknesses of their team, coach, university. As for the Pitt fans - well they are long-suffering and but for the grace of God and the return of John Cooper there go us all.
Tennessee fans are loud and can be full of that Southern charm.
LSU fans IMHO are the craziest bunch of loons I have ever seen- but I kind of like having them around, every family should have one demented uncle.
The ND fans that I personally know are generous to a fault and very realistic about their team, coach and the like -and don't take a high and mighty tone about Ohio State. Which I personally appreciate, plus they almost to a man detest scUM -go figure?
This year it was my distinct pleasure to meet here some of the best Big 12 fans anyone would care for - in the party of Oklahoma State prior to and after the Alamo Bowl - and with the great group of football fanatics from the Lone Star State -- have we congratulated them sufficiently for their win last night?
Known a few Nebraska fans, one who works in Md who is emblematic of the passion those folks have for the game - they are presently in pain, regardless of their recent win over scUM.
LJB - Thanks for starting this thread. It is good to remind ourselves that there are indeed many fine people that share our passion for this game. Before you take issue with my choices remember that if you take folks as you find them, they'll find you to be much like yourself. Good reputations are hard to earn, and far easier to squander.