OK, that's an easy one for me: Steve Kimock (who I'm sure most of you have never heard of). This gets quoted all the time (and Steve doesn't care for it), but he was Jerry Garcia's "favorite unknown guitarist" too. I'm not at all comparing the two, but Steve's playing is all about tone, tone, & more tone, yet he can rip withe the best of them when he chooses to. Caveat: you'll either love his playing or hate it