Auctioneer is a piece of shit, ever time I try to buy low and sell high I get fucked. I hate that addon with a passion.

Questhelper
Tinytip
Fubar (and plugins)
MonkeyQuest

Are some of my off favorites (without thinking).

(I've done more opposing faction raiding in the short time I've been on Warhammer then with all my characters on WoW) I just noticed that.