It's personal taste of course. Question is if the initiators are automatically the best blues guitarists....
Well, to me there's one guitarist that fascinated me more than all others. I investigated Blues history, I made up stories in my head how things could have been. The best is, at first listening I had no ear for understanding his greatness, but his records were so special that it became like an addiction listening over and over to them. I always have his songs on my MP3 player...it's like a curse :-) When I hear him play, I try to travel back in time to that lonely hotel room, where he sat and played this handful of songs....you all know who I am talking about don't ya......it's Robert Johnson of course.