Yep, Gary Moore for sure, also one of the best guitar sounds (listen to the live version of "The loner", and you know what I mean!)
others (beside Hendrix, who is close to God!):
Nuno Bettencourt: Great Player, very "percussive" sometimes, as a drummer I just love that!
Eivind Aarset, very atmospheric and innovative, plays with Nils Petter Molvaer (for those of you who love really innovative Jazz)
Jimmy Page, not the best on the technique side, but if I listen to the riffs of Kashmir or Whole lotta love, I give a flying you-know-what about his technique!!
and finally, from Germany Berlin's finest:
: Richard Bernstein/Paul Landers...the RRRRRRammstein guitar duo!!
Sorry for all those I've left out, but there are so many good players, and many have been mentioned here already!