my unspoken first (i guess "0.") would be Queen
first, of course, Pink Floyd
second, most likely The Who
anything beyond that, like the Beatles, Cream, U2, Hendrix follows in lesser degree in that order (past obsessions/loves), and Dylan, The Stones, follows even lesser, and even lesser beyond that is stuff like Radiohead, etc, etc. and though I listen to Avril a lot, I don't know where she factors in really, might just be a phase. I think she was like the second incarnation of Andrew W.K. for me...recent popular music overdose.