Robert Johnson to the Black Keys. Talk about blues here.
It is my opinion that any serious rock and roll fan has to at least go through a phase where the blues is an important part of what you listen to. I mean if all you want to do is bop along to daft punk, don't bother, but otherwise I think it's a good idea.
my own tastes:
Like: John Lee Hooker, Muddy Waters, Stevie Ray Vaughn, the Black Keys
ok: BB King, Eric Clapton (the earlier the better, pretty much)
dislike: not much. Led Zeppelin's mangling of old blues songs on their first two albums, I guess.
anyway. if you like the blues you can discuss here.