only because I've een listening to my relatively new set of Cds from Time-Life, The Folk years Collection - I;d have to say the voices I love the most are:

Jesse Colin Young
Tim Hardin

I vote yes that Johnny Cash is folk and further wish that Vince Gill would cease singing silly country fare and start singing more Irish music since he has such a lovely voice for it. This is the second time I've said this in a Mudcat thread so you know I mean it.