Watch the Garden concert of Springsteen that just came out on DVD. In particular, see "Youngstown" and there should be no doubt that Nils Lofgren is totally possessed! Who wouldn't make a deal with the devil to play like that?!
Other's include:
Hendrix (without a doubt, the best there was!)
Stevie Ray (who wasn't allowed the opportunity to show us how he would have progressed by now)
Little Steve VanZant (who is a good actor, but a REAL good guitarist!)