If you know a decent or an awesome aoe spot at lvl88+ area where 5 mages could go aoeing the &/"¤ out from that place, please let me know. I never won the beta key, though I never even opted-in in the first place.. but zerging the end-game world areas is my plan and then I'd fill AH with all the new stuff while it's still new.

Probably dungeon farming would be cool, too, but exp-wise that might be slower than killing thousands of world area non-elite mobs.
I've been leveling 5 druids now with guild perk and 2x heirlooms and doing LFD and it seems still pretty strong way to go at lvl 36..

Basically I'd do anything except questing, unless you need to finish some quests for rep tabards to use in dungeons later