There are good and bad everywhere I suppose...but a certain school out to the west in my book is hands down the worst in the past with it's student section...(sorry BeachBuffs)
But I did run into some bad ISU fans over in Iowa at one game, but that was back when they really sucked...and if I was a fan then I wouldn't have had a good disposition either...but then I am hard headed, too - and wouldn't have known just to go root for the hackey sack team (course they probably sucked too).
Seems like Nebraska has gained a few more of the "bad fan" types in recent years...maybe because we sucked so bad under Callahan? It is easy to be gracious when your a winner...but when your team kind of stinks the joint up, not so easy - you just want to tear someone's head off.