Alan Wong's was a great meal. It was our 2nd favorite of the trip. You have to have a credit to reserve through Open Table (times do fill up quickly as well)
My review is here:
http://disboards.com/threads/waving...ing-home-the-end.3467739/page-8#post-56371869
What I would recommend as well for fine dining that has a review as well as amazing food was Hoku. It was a drive from Aulani but it was the best meal of our trip!
Hoku Review Here:
http://disboards.com/threads/waving...update-9-25-going-home-the-end.3467739/page-9
Both Alan Wong's and Hoku do tasting menus as well if that is what interests you as well.
Noe at the Four Seasons was also an excellent meal.
As far as hotel - which one you want would depend on what you want from a hotel. Do you normally stay at Four Seasons/Ritz/Fairmonts? If so - I would stay at the Four Seasons as that will be the service and quality you are used to. Aulani will be more of a normal hotel experience with additional nice experiences that one would expect from a Disney resort. We enjoyed our room at Aulani and the extras we arranged ourselves or were arranged for us by others for the extra level of service.
I haven't stayed at the Four Seasons in Hawaii but I have in other places for reference.