Asmos all day baby. Always dark side. CBA to deal with fruit lookin goody goody's , because first heres some nice little facts back from my WoW days:
Pick those goody lookin sides, and most those little kids want to play super heroes or damned elves or humans, and when it comes to public pvp, without proper organization, they don't work well together, the lack of maturity.
However, comes to the side that looks ugly and badass to some, contains more maturity, and more cooperation during public combats, and oh ye, less kids cause they don't want to play the EVIL LOOKING bad guys.
But that's just how i see it and how some people and i have agreed in the past when it came to choosing sides/factions.