So it looks like where we stand now is this. Setting aside any claims about fairness of the AV map and NPC differences, the most substantial explanation we have for why the Horde has been losing the majority of zerg-vs-zerg AV runs is that the Alliance has been doing a better job of abusing the BG (skipping everything and PvEing down the end boss as fast as they can), while Horde groups have this unfortunate tendency to try to complete the original objectives of the BG (much to the chagrin of the PvE zergers amongst them).
That's a pretty good echo of Rathamus' main justification for his years of operating his premade strategy : Because we can't keep allowing the Alliance to win by perverting the battleground and turning it into a PvE zergstomp, and we don't want to win by becoming even better than the Alliance at abusing the BG. Because we don't want a six minute win and a stats chart that reflects only the quality of PvE gear (and the number of Paladins and DKs) that we brought to this PvP battleground. Because we want to turn the entire map red and win one player death at a time.
I'll stop there and add that I'm not 100% sold on Rath Strat because I really do not enjoy farming anyone any more than I enjoy being farmed. What I'm really looking for is a consistent, repeatable group effort that first paints the whole map red and then destroys the boss. I understand Rathamus made an agreement some time ago to leave Vann's room alone as a last sanctuary for Alliance players during his runs. My opinion is they can make do with the Harpy caves or the Druid grove, we've got business to do. >:][