I wouldn’t say hate but I have done Blade’s Edge Mountains and Grizzly Hills twice now (just finished the second on each) and I have yet to find either an enjoyable experience.
And I am not fussed on Stranglehorn as too much hunting, not enough adventuring, although I do love Booty Bay.
I used to dislike Dustwallow Marsh quite a bit but after doing it on a Horde character, I have a new appreciation for it.
I detested Storm Pecks because of all the flying taking me out of the world but then I got into the story and was hooked.
That’s about it for negative feelings on zones.
(edit: changed Swamp of Sorrow to Dustwallow Marsh as I mixed up the names.)