I'm not sure if there are kids with you, but I honestly don't find that we need more than a few hours to do all of AK, but we don't have kids who would enjoy riding the things we skip over. If you plan on riding Kali River Rapids, make sure you plan for a stop back at your hotel. You do not want to go to dinner soaked, and for whatever reason it takes me and most people I know HOURS to dry off from that ride.
As far as restaurants, I prefer WP.
I've never had a bad meal at Fultons, but I don't think there's anything standout about it aside from how expensive it is. I realize it's Disney, but I like to think I'm getting something different when an entree is in the $40-50 range. The caveat: I'm a native New Englander that grew up with access to tons of really good seafood, so I think it would take something REALLY special to wow me in that department and it just hasn't happened here. To me, Fulton's is just average seafood fare.
What I like about WP is the diversity of the menu and the fact that there are a few different options when you're there. Again, I've never had a bad meal here, so I guess it depends on preference. If he feels like seafood and I want pork, we're covered. Sometimes we'll pass on the dining room to do a pizza and sushi at the cafe.
I second the recommendation of another poster-- check out the menu and see if you'd really like the options and go with wherever you find. I also tend to use Yelp A LOT when picking out restaurants.