It really depends on what you and your family will eat.
Most kids love places like T-Rex at DTD which is Dino themed, food pretty good and portions very large. Theme is pretty cool.
Rainforest Cafe same as T-Rex only rainforest theme.
Check out the menus on here or on allears.net and see what takes your fancy.
We have eaten at the following
California Grill- Good food but pricey
San Angel Inn- Loved the food and the atmosphere
le Cellier- Not one we would ruch back to but loads of people love it.
Crystal Palace- Breakfast was great and you can't beat meeting Winnie the Pooh and Friends.
Fultons Crab house- Good food but its mostly seafood and the alternatives are a bit limited.
Sanaa- Food ok but another one we would not rush back to.
Tonys Town Square- Horrible food and service.
Paradiso 37- Only had starters and drinks but pretty good and they have a band in the evening.
Via Nappoli- Pizza good and plenty of it but service not so great. Would not put us off going back.
Sci-FI- Good burgers and shakes and the atmosphere is pretty cool plus getting to sit in the cars is another nice twist.
There are others but can't think of them all at the moment.