i was never a huge fan of them. i don't really know why, to be honest. they just don't strike me as being anything more than a band i can listen to every once in awhile. the only albums i really listen to by them are Dookie and their greatest hits...
but their Bullet In A Bible DVD is incredible. they are definitely in the top 5 best performers i have seen, easily. if you don't have that DVD, you gotta watch it.
so yeah, i respect them, but i just can't really get into their music so much.