I vote for Coral Reef for dinner at Epcot....it's a restaurant that centers around the giant aquarium. When we told my dd5 we were going back to WDW, the first thing she wanted to do was eat here! The fish in the tank were absolutely amazing, we also saw a huge turtle, a shark, etc. The kids menu was a guide, where kids could locate the different animals in the tank. It kept my daughter entertained the entire meal! It was awesome! Our meals and service were very good too (we both had steak).
Epcot is a wonderful place...you will enjoy it!!!!!!
We also ate at Yak and Yeti while at AK. It was very good....reminded us of the PF changs chain if you like that. We are going back this trip.
Happy planning!!!