Chet Atkins
Roy Clark
Jimi Hendrix
Eddie Van Halen
That would be my Mt. Rushmore because they were all game-changers, IMO.
Personally, I think Hendrix and SRV are the two greatest guitarists who ever lived. But there are so many phenomenal guitarists across multiple genres, narrowing it down to four is impossible. It's actually frustrating to me, LOL.
Frusciante, Knopfler, Buckingham, Andy Summers, Clapton, John Mayer (incredibly underrated), Jeff Beck, David Gilmour Alex Lifeson. Al Di Meola .... all worthy of adoration and respect.
I don't listen to Jazz, but I have no doubt there are dozens of guitarists who would blow away anyone on most people's list. But that goes back to the genre thing. Anyway, this should be a fun thread!