Paul depending on how you define it I would need to say The Doors although Buddy Holly is a good call..............
It's interesting because I actually think in most era's(in overall terms I mean, obviously it's hard to argue against the Beatles as being no.1 in popular,cultural and musical influence terms )American music tends to shade it against the British but usually the main influence is down to individuals i.e. Dylan,Hendrix,Brian Wilson,Elvis,nearly all the Blues artists-even back as far as Sinatra-of course these individuals did benefit from amazing back up however for some reason Britain did seem to produce more influential bands,in the collective sense.........don't really know why that is........................
It's interesting because I actually think in most era's(in overall terms I mean, obviously it's hard to argue against the Beatles as being no.1 in popular,cultural and musical influence terms )American music tends to shade it against the British but usually the main influence is down to individuals i.e. Dylan,Hendrix,Brian Wilson,Elvis,nearly all the Blues artists-even back as far as Sinatra-of course these individuals did benefit from amazing back up however for some reason Britain did seem to produce more influential bands,in the collective sense.........don't really know why that is........................