I would go with any restaurant at either the Wilderness Lodge or the Grand Floridian. The decorations at both of those resorts are totally amazing. They will absolutely blow you away. They both have really different feels to them, so it would be great to do a lunch or dinner at each. They both have some wonderful restaurants, so it would be a really enjoyable break from the parks. You could eat and spend some time wandering around soaking up the atmosphere either before or after your meal.