Hi. We did both Chef Mickeys & Crystal Palace (along with CRT, and Donald's Breakfast-a-saurus) on our trip last January. I would definitely recommend Chef Mickeys over Crystal Palace. Chef Mickeys was a lot of fun and the food was good. My girls got to sit on Minne's lap, Chip and Dale walked them to the buffet, Mickey escorted us out. Crystal Palace with Pooh was the pitts! Character interaction was limited to a QUICK picture and handlers moving them on before signing books, awkwardly spaced throughout the restaurant so we hugged piglet twice but never saw Tigger. Also, anytime you would get up to eat, suddenly someone might appear at your table. (They weren't going around to each table in order). Parents all around us were getting wound up and complaining, just a very tense situation. We had seen Pooh and pals all over Disney World by that time so we just ate and saw who we saw. I will say though that the food at Crystal Palace was very very good. They had an incredible mussles in curry with jasmine rice. My girls (1 and 2) loved the food too and found plenty to eat. Maybe we were there on a very unorganized night because I've read lots of great CP reviews here.
Good luck.
Lesley