No David Gilmore mention as of yet ? Pink Floyd music is absolutely hypnotic, takes you away to anther place.
Jimmy Page definitley one of the all time greats. Agnus Rocks....not so big on Van Halen and SRV....just a personal preference, i recognize the great talent though, just not really my style. still listen and appreciate those two but when i am picking i would select other musicians/bands to jam out to.
Also i enjoy a lot of newer artists with the hard care in your face style, not as harmonic with the solo's and scales but more adrenalin rush type of jam.
Also saw a mention of john mayer, that kid is good. something to listen to when i'm in the right mood.
Metallica Rocks, Love Godsmack... and of course....any of the guitarists who played and recorded with Ozzy.