Ok, well I won't reveal the results yet, but I will put in my impressions:
For the EMG, you guys are crazy if you think there's anything more than a 1% difference between A and B - I'm listening in my semi-treated room on good monitors that I know pretty damn well, and they're damn near indistinguishable (performance notwithstanding). C on the other hand is thinner and harsher IMO, so I really don't like it.
For the Dimebucker, I feel B is indeed the most muffled and my least favorite, but not by much, goddamn - A is the best, then C close behind (still a bit thin/harsh, but not as noticeable/bothersome to me as with the EMG).