As promised today I am going to talk a little about my questing experience. So if you don't want any spoilers I would suggest not reading this. Now since I said something don't mass mail me and complain that I spoiled things for you.
So far Uldum has been my favourite. It started out with a pretty entertaining cutscene where you are captured and the break yourself out. You go on to help the empire of the Tol'vir to defeat their enemies in which you participate in some great quests. Also not your average quests these were extremely well designed and entertaining, but this wasn't even the best part of the zone.
The best part of the zone comes from our pal Harrison Jones. I don't think there has ever been a better questline in WoW. Blizzard really wanted this questline to have a great story and be done right and they achieved this by having countless cutscenes. Some of them even just for the most minor of details, like traveling to a new quest hub. It comes down to a point where there is a cutscene after basically every quest you complete. Now the quests from this line are some of the most fun and craziest you will ever do. There is a bombing of a mountain side, an epic escape where you are the gunner of a plane, a mission impossible type bombing quest, show down with a crazed beast, dressing up as an officer to increase work production, you are almost killed by a firing squad, and so much more.
I have heard so many people are skipping Uldum and going right to the Highlands. Don't. This is by far the best zone and collection of quests Blizzard has ever come up with. Well worth your time, trust me.