Zuldazar and Nazmir are great. Vol'dun's much weaker than the other two zones. I mean, I know I'll still grind Voldunai rep because I want that hyena, but yeah. I liked it about as much as I liked Highmountain. I always saved Highmountain for last because I didn't want to do it.

I still haven't unlocked HMT because I hate that zone.

Alliance-side Drustvar is awesome and for all the hate it gets, I actually liked Stormsong. It's a beautiful zone and I like the Cthulhu bullshit going on there.