I recommend Dine with Shamu. You get a close-up view of an orca while you eat. The trainer does a couple of tricks with shamu while you eat. I hear that they have a trainer come to your table also to answer questions about being a shamu trainer. They did not have the trainer visiting tables during our last visit in 2005, but this sounds like a cool addition. The food is pretty good too. My family has always loved this experience, especially my DS12, who has stated to us he is going to be a marine biologist and eventually become a shamu trainer. Another great place to eat is Sharks Underwater Grill. If you've been to Coral Reef it's similar. You can watch the sharks while you eat. The food is excellent and there's even something for the kids if they don't want to eat shark meat. My DD3 enjoyed getting her drink in a cup holder that was shaped like a shark's head. A great experience for the whole family.
I hope this helps!