Last night I started the Battered Hilt quest line. I love epic quests, as I've said before the Onyxia attunement was my all time favorite favorite quest.
I don't think this is going to equal the Onyxia quest but it is steeped in lore, and it is fun.
You start just below the tournament grounds at Quel'Delar's rest and you'll be back here a lot, so before you start the random dungeons to complete the Icecrown portion of this quest line you might want to park here, It'll save you some time.
Keila the Forest Cat