The difference between Horde and Alliance is very small when it comes to PvP.
They posted stats of Horde vs Alliance wins like a year ago and while the Horde on AVERAGE wins more, it's not by a very large amount. Something along the lines of the Horde winning 3-5% more? The only outlier was AV where I believe the Alliance won 5-10% more often?
But yeah it's grass is always greener. Sure the Horde win more on average, but 3-5% better win rate is nothing to write home about. Basically it's about the same.
Childish thread is childish. This same crap goes on with both factions in BGs and let me ask...how dumb must one be to think that different people play the different factions? Especially considering the fact that a lot of people play both? People are people, there are kids, teenagers, adults, old people, skilled people, great pvpers and so on playing this game no matter what faction they're on.