Agreed, in the many forums for where you would place your player housing if it was a part of the game, I always choose Dun Morogh for the air quality haha!
Best: Winterspring-it’s the perfect winter most dream of- pines, white blanket, plus the perfect weather to sit by a fireplace and have a coffee or hot chocolate.
Moonglade - it’s the nice oasis of the north. Yeah there may be druids, but druids are intelligent and would have the decency not to defecate everywhere.
Worst- swamp of sorrows -it’s a swamp so there’s bound to be hydrogen sulfide gas, need more be said?
Every time I enter Naxxramas all I can think about is how ungodly horrible it must smell in there. Not technically a zone but still…it would be a hundred times worse than the plagelands because it’s an enclosed space.
Best smelling zone? Probably sholazar basin. Dense forest with wildflowers abound? Cmon it’s GOT to smell good!