Vysis. I just spend 4 hours at Axiom listeing to m22s, m60s and m80s.
I started the day at around 75-80 db listening, not that loud, and was up to 85-90 db by the end of the 4 hours. The M80s sounded better at both spl levels.
I heard it a lot with cymbals, clearly with male vocals, though not as much difference as with the cymbals, and on the bottom end with bass.
Now if you really want to hear them puppies open up, try M80s vp150, qs8s and an ep350. Dire Staits live at the BBC. WOW!!
Everybodys ears and tastes are different, but to me the M80 is distinctly better.
I can't believe I'm pimping the M80 more than Jason! The shame...