Well, having thought about it a little more - depends what your aiming at.

Guest Leo was talking about technically good voices, rather than people he liked to listen to.

This is the thing about Folk singers. They are singing stories in a social context rather than impressing people with the quality of control they have over their voices.

Jon is a great singer, but there are many others I love to hear in folk singing sessions - who maybe don't have such a 'good' voice, but are brilliant at getting the message across.

Blah, blah, I'm getting a bit waffly now, sorry.