@stuartk Otis Rush and Roy Buchanan! Great guitar player mentions!
If we were trying to reach the most legitimate, objectively, empirically-based rankings of certain performers, technical proficiency would have to be taken into consideration. To stay on the topic of guitar players, while I would never personally (subjectively) prefer, say, Yngwie Malmsteen and Eddie Van Halen to, say, David Lindley or Jesse Ed Davis, I would have to rank Yngwie and Eddie higher. They’re just too good, and their disagreeable music is not enough to trump their obviously superior technical proficiency.