A good RECORDING is the best bet. Since all recordings are "processed" in some way by the time we get them, I would seek out something by Mayorga or other direct-to-disc recordings since they are the least processed. Loving to hear Baez do Diamods and Rust is nice, but how much "stuff" was done to the recording to get that voice so crystal clear and those dynamics so balanced?
As I was told all my life when trying to decide something, CONSIDER THE SOURCE...
To each their own, but I would start with a quality recording and go from there.
Cheers!