This upcoming trip we're doing 6 nights... and 10 character meals. Have done up to 13 in the past on trips!
We LOVE the character meals - especially since we love buffets, and love having the deluxe dining plan. Just works for us with kids having meals as like a break time, breaks up the day for them and helps with them a lot. Is nice not having to run around locating characters in the parks - since we see them all at the meals.
The only downside... after so many meals, the constant interruption starts to get a little annoying to me, but it's not too bad. Just trying to eat and okay, grab the camera, grab the vid cam, grab the autograph book, here comes another character. So we do enjoy having some noncharacter meals, too.
But my kids, 6, 6 and 9 love all the character meals and each trip they request doing them again.
I was going to list our favorites.. but actually, they ALL are our favorites!
NONcharacter meals the kids love are Mama Melrose, Sci Fi, Whispering Canyon, Planet Hollywood