CRT for dinner does not have characters, it is only for breakfast and lunch. I happen to think the breakfast is much better at CRT than Norway. There is more than just Cinderella for the breakfast, Aurora, Belle, Mary Poppins, Jasmine (see her once in a while), Alice in Wonderland, I've also seen Aladdin there a few times too, they tend to vary the princesses, but the three I have always consistently seen were: Aurora, Belle and Cinderella. If you have little girls who love the princesses it is definitely worth eating there since you get to see them all at once and don't have to track them down in the parks.
1900 Park Fare is the Cinderella dinner which I've heard that the food is just okay. You just get Cinderella, Prince Charming, Suzie and Pearla, no other princesses.