World of Warcraft. Got a level 60 undead warlock on Silver Hand, which was one of the first realms that I never, ever play anymore because it's incredibly overpopulated and next to impossible to get in a raid group. I love my guild on that server, and my screenname is my warlock's name, but there' just no love for me on that server.
So now I play my level 27 undead Warrior named Kaeyle on Nath'rezim, which is a PvP server. Loving it. Keeping my smithing skills on par with my actual level is quite a trick, too, but I am doing it without too much fuss.
Fuck the Alliance. Horde for the win.