This is why I don't like 2 freaking factions on a MMO.
Happened in WoW, now SW:TOR, and even if I didn't bother with TOR, I played a long time WoW, and if you were alliance in a low alliance pop realm, you were screwed.
In TOR I'm guessing you can notice the imbalance cos of the current subs, compared to WoW, obviously.
Sticking to L2, and no factions BS. Just guilds kicking eachother asses.