Hiya Rowdy,

Firstly, welcome to the forums! Here's my 2c on the subject...

The general consensus is that Horde racials > Alliance Racials, and this is one of the main reason people choose Horde.

The three best IMO are:
WOTF - AOE fear is a boxer's Achilles heel, to be able to immediately dispel it, or to use proactively for 6 secs of fear immunity is invalueable.
Blood Fury - great pvp racial, especially when trying to burst down an opponent. Blood Fury + trinket + Bloodlust = massive Pew Pew.
Warstomp - can be chained together 3 times before DR makes a toon immune. Great for Shamans, as they have no CC.

Conversely the only Alliance racials I find appealing would be Perception for humans and to a lesser degree Escape Artist (which can be resisted).

From a culture pespective, there isn't that much difference. You'll get idiots no matter which faction you choose...there is a percetion that Alliance players tend to complain more than Horde players, I don't know how true this is though.

Personally speaking, I also like the looks of the Horde races...they are edgier, more non-conformist that the Alliance ones.

If you're going to box, and you roll Horde - definitely come and check out Magtheridon. We have an established guild and thanks to pioneers like Xzin and Ebola, multiboxing is well recevied there.

Cheers,
Stealthy