David Gilmour, for his perfect expression
Tony Iommi, for all those bitchin riffs
Michael Hedges, for his acoustic mastery (Taproot)
Randy Rhoads, for "outclassing" everyone
Adam Jones, for making me believe in magic once more.
I'd also like to recognise Buck Darma, Pat Travers, Ronny Montrose, and Robin Trower. Without these guys on the classic rock stations, radio is worthless.