Eric Clapton-Turned me onto guitar playing really, it was White Room that started it all. I'm also a sucker for Woman Tone also but I also dig Clapton on a ES335 and the "brittle" sounding Firebird I. There something about a mini humbcker honk that does it for me.
Jeff Baxter-Love his guitar work with the Ventures and just a honest player in general. No BS with him.
Jack Bruce-Don't know if this is supposed to include bass players but why not. Jack Bruce is a monster, has serious balls and can back it up with his chops!
Paul Kantner-Prob a odd choice but I always liked his playing