Joe Bonamassa
Stevie Ray Vaughan
John Mayer
Singer/Songwriter:
Mat Kearney
Dave Matthews
Rocco DeLuca
James Morisson
Rock:
Chevelle
Black Label Society
Metallica
Tool
Everything else:
Pink Floyd (David Gilmour)
Allman Brothers
Keller Williams
Moe.
Umprhey's McGee
Michael Hedges
Grateful Dead
That's a lot... but those are SOME of my favorites. If I had to narrow it down I'd say "Metallica, Dave Matthews, Pink Floyd, and Joe Bonamassa."