I found this interesting review of Battlegrounds today which is well worth reading. It comes to us from the gamespy website.

World of Warcraft- Battlegrounds After-Action Report
We've been to Warsong and Alterac and lived to tell the tale, now two of GameSpy's WoW PvP veterans relate their war stories.
By Miguel 'Shotta' Lopez and Allen 'Delsyn' Rausch

Since the launch of the World of Warcraft Battlegrounds on June 7, PvP-mad players have been flooding into the two new regions of Azeroth that are specifically designed for player-vs.-player combat. Alterac Valley is a massive instance where 40 Horde and Alliance players on each side vie for possession of a strategically important piece of real estate, and battles for control can take six to eight hours to complete. Warsong Gulch, on the other hand, is a smaller instance for those who don't have that much time. It's a game of capture-the-flag where 10 players on either side try to accumulate three captures while preventing their opponents from doing the same.

You can read the whole article here.