I would say Elite will be on both sides. Both present potential for it.
The argument to go Horde because I want to be an underdog, I understand that. You want to be special and have your own rules, who doesnt.
Both factions have valid reasons to be played as. There is no such thing as kids or neckbeards playing Alliance or Horde exclusively. There are such players on both sides.
I feel like there is big difference between individual races of factions, therefore you shouldnt throw them in the same category. They might be in the same faction but lets face it, that doesnt mean they have the same interests.
Faendur, the Creepy Dwarf