its LTT _ i.e.,, Liberty Tree Tavern, good basic food that the kids like, and they used to have fun interaction, but they've changed and no longer have characters in their period costumes...
If your son likes Mickey, Stitch and Pluto, I really recommend Ohana's for Breakfast! Its our favorite interaction, Pluto has gone crazy, as does Stitch, its fun to watch the interaction and be a part of the interaction. They have a little parade (or used to) that the kids love -
Do know that Ohana's is a relaxed breakfast, and may take longer than you expect. When you arrive you may see a great many people standing, sitting, waiting and you may see empty tables - its because Ohana seats per section - that way the charcters interact in your section. I also love that they bring the food to you - as much as you want! So for us, its more relaxed, its not like if you go up to get more food you may miss a character -
we usually do it on our last day, we've packed and then come to the Polynesian, its a fun way for us to end our vacation