I'll add to those who mentioned 8.3 zones are harder. Its true, but leveling is also borderline godmode. On leveling monk i ussualy can't get full fists of fury off. They die in rising sun kick and half the channel. Thats too quick to even enjoy the class. A lot of classes have decent rotation that I'd enjoy a lot more if i could actually experience it without the mob dying a third of the way through.