Alliance outnumbers horde because horde Proteus, Warmonges and rest paypal "pvp" guilds prefer to que up Av-Ab-Eye with 20 healers premade and rape alliance pugs there instead of queing WG.
I saw many times, how horde [after gettin ranks first wave] takes siege engines, demolishes and goest to... alliance on the east, instead of fortress assault.
The one game when horde didnt act that braindead they won.
Also Purplebeer can rape allianec raid solo, no clue why he does not que anymore, prolly bichslapped by administration cuz of million complains or sufferin' from obesity in some hospital. With his heavy support horde has all chances to win, but thats Alliance vs Multiboxers game utterly boring and equals to the game when alliance farms horde at GY.
Muliboxers just have won WG< many gz much wow.