I had a blast in the 40 man Alterac Valley BG tonight. We got a guild deathsquad going consisting of 3 Mages and 2 Priests and basically sneaked around causing problems for the alliance. Destroyed a few towers and converted some graveyards and held them by ourselves for a while, at least until the zerg showed up. Mages can really shine in Alterac Valley; small AE groups can shatter some pretty strong enemy advances. Other times we ran in and got promptly killed
All told I got 200 Honor Kills in about 2 and a half hours, which is quite nice compared to the usual Tarren Mill affair.