...Sitting in a a circle of musicians playing, or sitting in on a jam can sound more interesting than a stage-audience relationship, and is a lot more intimate. You players can attest to this. Have you ever wondered what it sounds like to be
playing in that string quartet during practice, when they are facing each other?
Lacking that, I prefer two channel for now.
BTW, the few true binaural recordings I have heard (through Stax headphones, great sound too) gave a more realistic sound field than anything else I've experienced. Binaural is recorded through "dummy head" microphones for headphone reproduction.
http://www.binaural.com/
Peace, Clark