The graph on the front page shows red lines way longer than blue lines. OMG. This means that Horde clearly wins way more than Alliance, right?
Actually, if you actually take the time to read, you'll find that this long lines equate to win ratios like 54:46. This is an extremely good win/loss ratio. It's as close to 50% as you can reasonably expect to get. Blizzard has done a great job making the BGs pretty much fair and these stats only prove this.
So please, stop complaining Alliance. Horde, stop complaining about AV. Everyone wins pretty much the same amount as they lose. It will not ever be better and it is incredible that it is this good.