I've been fortunate enough to hear Carlos Montoya, Doc Watson, and Pat Donahue live. My only regret was that Doc wasn't playing solo, so I couldn't pick out just how much of the gorgeous stuff was him personally. I would put Pat Donahue way, way up the list of those in the business today; absolutely stunning in a small concert setting. But I've heard so many lesser-known people with beautiful individual styles, god only knows who the best thousand guitar players are!