To give a list..
1: Monsters - This is my most anticipated of the lands. And it's because to me, the Monsters have such a fascinatingly rich level of potential, that it can really turn out to be a pure-blooded dark horse of the entire park. More-so than any other land, it's the one that has the most potential to do something truly amazing, that it could knock out all the past expectations.
Also, it's really depending of if certain people are on the project..
2: Dragon's - It was the first film I saw by myself, and my favorite of any series that DreamWorks has done. It has so much potential, and it looks to have already an insanely diverse group of attractions. Not to mention the potential with a family Night Fury coaster, this could really turn out to be one of the best lands of the park.
3: Hub - Yup, the Hub is above Nintendo/Potter, because look at how amazing it looks. I love the level of topography and terrain use, especially with the large amounts of water. Not to mention the dueling coaster and potential attractions to be scattered, it could be the best entry zone that Universal has made to date.
And that's not bringing up how great the Hotel looks so-far, from a visual standpoint.
4: Nintendo - I won't go over reasons, but it's there and it makes me..extremely happy. Especially with DK seemingly in the cards for Orlando at-least.
5: Potter - I do think this has the potential to be great. Especially with the concept of the Ministry..but It's down there, because I do have a lot of questions to how the Ministry may even be done, if that's the direction the indoor environment will take.