I am very dissapointed with the leveling experience the last expansions.
Now you have a very linear and poor leveling content. coming from someone who has 10 100's. The only real option you have is to skip a zone so you have 4 zones to level in.
In wrath you had 9 zones, in TBC you had 7 zones.
I miss choice. When there was 2 zones you could chose from every time, example:
70-72 Borean or Howling
67-80 Netherstorm or Shadowmoonvalley
In WoD you have a very linear questing experience, little choice, you can however skip zones so you can even less leveling content.
The zones are smaller, and they feel extremly small with the new map aswell.