-Brent Mason (the guy plays things off the top of his head 10 times better than almost everyone I've ever heard!)
-Eric Johnson
-Joe Satriani
-Wes Montgomery
-Trey Anastasio (this guy gets nowhere near enough recognition... he is a top-notch player in my opinion)
-Tom Morello
-Mark Tremonti
-and of course, Mr. Yngwie J Malmsteen (if he improvised his solos, he'd be a lot better... i swear)