Three? Just three? Wow. Favorite due to sheer enjoyment at the listening moment - Led Zeppelin, Beatles, and Pink Floyd. In a historic context -Elvis, Beach Boys, and Beatles.
I'm sure if I answer this again in twenty minutes, this would change completely, maybe Hendrix, Aerosmith, Mountain, Sha Na Na, Velvet Underground - all over the board. Definitely The Beatles somewhere in there.
Bruce Springsteen & The E Street Band (I know the front man gets most of the credit.... but I'm sorry.... the E Street Band is one of the best Rock bands in history)
The Who
Led Zeppelin or The Rolling Stones (depending on the day)
#1 Pink Floyd.
#2 black sabbath
#3. I will have to decide on this one.
After the day I have had this is the floyd song that shadowed my day. http://youtu.be/7sMVXa3Xw68
Get the B&B reference
"I feel cold as a razor blade"
Pardon me ppl I have a cd to listen too. Ummm where did I put my bottle of gin?
Showing my age, I consider classic rock to be pre British invasion. Groups that played their own instruments are hard to find in that period and there were too many good ones after that, so I'll stick with a couple of my pre-1963 favorites:
Buddy Holly & The Crickets
The Ventures
Santo & Johnny