Priorities are Alliance.
Orcs models make me cry. Tauren couldn't fit through doors when I played one in TBC. Undead have those bloody bones. I don't like Trolls. I despise Goblins. Don't mind Blood Elves. My Horde was originally to try out something different after spending a lot of time as Alliance. However the Server I'm on makes half of them seem like they're about 10.
I'm currently considering Faction/Server Changing my Rogue and Warlock to Alliance (or back to Alliance for my Lock). However I need to see the effects of Connected Realms before that, because I currently rely on Oqueue for my weekly Alliance Ordos kills. I want a Night Elf and I miss my Worgen Lock :/
Whilst the Horde are better at PVP, my allegiances lie with the Alliance.