If not, can you explain why Method and vodka, the only alliance guilds who were taken seriously for contention of world firsts pre-MoP have switched to Horde?
The reason is: horde racials are much more oriented towards actual player performance. Blood Fury, Touch of the Grave, Berserking, 1% haste, Arcane Torrent and a rather significant stamina increase are all vastly superior to Escape Artist, Stoneform, 1% hit, Shadowmeld, Every Man for Himself and 1% crit.
When will Blizzard take up the task of balancing out the racials among factions?