Before you alert my local mental health professional (I saw him this weekend, actually, he was pretty jazzed about a Wintergrasp string of wins he'd pulled off this week) let me explain: I like AV because I like the total mass chaos potential. Sure, a lot of times we end up with both Horde and Alliance zerging to their objectives and very little PvP, but that's not what I enjoy. What I enjoy is sitting in a tower with a buddy and waiting for the enemy and then seeing them come running in the door, six against two, and doing my level best to Bladestorm their faces off before they manage to cap the bloody thing back. Or going prot and becoming the most annoying man alive, zipping around with Warbringer and popping Shockwave in the middle of a pack before throwing every defensive cooldown I have up to annoy them even more.
I enjoy Flame Shocking a DK from behind just as he's about to take Dun Baldar North back from us. Orcs just look cool shocking people.