Clearly Nirvana takes the title as most influential band of the 90's, closely folowed by Radiohead. For me though, I've gotta go with Pearl Jam, they were just fantastic. They are one of the best live bands ever and have awesome songs that rock hard and some really deep songs as well. i think Eddie Veddar was a more dynamic frontman than Kurt was, though not as influential. Also I think Pearl Jam had better instrumental parts hense the "Jam" part. other than drummer Dave Ghrol Nirvana were not all that impressive instrumentally, it was more the message.