Rats, didn't get a chance to d/l and listen before the results posting, but gave it a listen. I definitely hear differences while ABX-ing. FWIW, my comments...
I hear better detail across the board in B. The HF percussion sings and rings, has a more defined attack and smoother, longer decay. Better detail in the mids on B, but a bit more up front in A. The bass stood out to me right away - looser and less defined in A, tighter and more natural sounding to my ears in B. Overall, I found the sounstage more coherent in B. All in all, I preferred B pretty strongly, but A certainly doesn't sound bad, not by any stretch. (And I love the music - I'd love to hear longer samples, or the whole recording.)