Best folk singers..hmmmmmmmmmmm....well Group with all round Sh**kicking harmonies and knowledge of the Tradition it's got to be the Watersons. Live performer with sheer energy for me is Rory McLeod...Martin Carthy simply for being soo good that he's still around performing, Dick Gaughan cos he writes the best songs and is sincere. Here in Brazil there are so many folk musicians that I couldn't even begin to list who's the best.