What about leaving the park and going to one of the monorail resorts for your meal? I don't know what you're looking for, but given your other two choices, Chef Mickey's is at the Contemporary Resort, and 1900 Park Fare at the Grand Floridian had a Cinderella dinner.
I really like the Grand Floridian Cafe for lunch, I've always had decent meals at Kona and Ohana at the Polynesian. The Wave is excellant quality for a one TS credit meal. And the signature restaurants are fabulous, California Grill at the Contemporary, and Citricos and Narcoossees at the Grand Floridian.