Our favorites...
'Ohana @ Poly for breakfast - Lilo and Stitch are a hoot
Crystal Palace @ MK for late breakfast (around 10:15 on an EE morning) - Pooh and Friends, very nice buffet, nice place to cool off after 10 rides first thing in the AM.
Chef Mickey's @ CR for dinner - Mickey and Friends - nice buffet, a bit noisey, but after an afternoon in MK, it goes with the flow.
1900 Park Faire @ GF - breakfast is Mary Poppins and Friends, dinner is Cinderella and Pals (plus the Prince). Very delicious buffet. A bit elegant - but in a Disney way. We like both meals.
LTT @ GF - for dinner, Chip & Dale and buddies, thanksgiving meal plus more, DH would not miss eating here.
HDD- our kids laugh everytime we go. Food is ok - like going to a bar-b-q.
Hollywood & Vine @ MGM - decent buffet - we eat dinner here to get our Witches section Fantasmic seats (Fantasmic pkg)
I do not think I left any of our favorites out.
The above gives you a very nice selection of characters (only a few buddy repeats) without standing in line to get an autograph or picture.
All the food above is 'kid friendly'. There is a variety of food for the kids.
Even the adults can find their food at the buffets.