My new Worgen warlock, Cygnet on Whisperwind, is now level 33, having come up almost entirely in dungeons. Very fast, and she’s gotten some pretty good gear – almost entirely in blues.  About the only quests I do are the cooking and fishing dailies in Stormwind.  I’m thinking when I get her to 60 and get flying, I might just putter around in the old world doing archeology to level while doing some Outland dungeons.