This is a list that should have more honorable mentions than just about any other.
In alphabetical order my list of four is below.
Chet Atkins
Buddy Guy
Mark Knopfler
Les Paul
Toward the top of the honorable for me would be JJ Cale, Hendrix, Albert King, BB King, David Gilmour and Prince who is very underrated. Personal preference definitely plays a major role.