This has been a problem that's been known for a long time. I've been playing Horde for a while, but at first i was Alliance up until seeing the advantages the horde had. Since then, i have spent hundreds of dollars moving alts to a high populated server (Illidan) in order to progress in Heroic raiding at a very fast pace. But in the back of my head, i know i want to be Alliance, and i would much rather be on the other faction.
Why hasn't blizzard fixed the racial's so people can play what they want rather than what they need? Have they said anything about fixing this in the future? by no means will i quit the game because of this, but i'd enjoy it a whole lot more being able to play my faction of choice.