Just tossing in a plug for the restaurant DD works at - Captain's Grille at the Yacht Club - it's a DIS favorite according to the wdwinfo.com dining page.
okay... Blue Zoo seems to be a crowd favorite. How dressy is it? We would be going for my dad's birthday-- and he isn't a huge fan of super dressy places...
You may want to check out the prices beforehand, it's pretty pricey, but worth every penny!!! Casual wear is just fine there, we saw everything from jeans to suits.