We were at each once on our trip in October.....Cinderella is easy enough to find in Toontown as the last poster suggested, and if she loves Mickey's pals too, then I'd go to Chef Mickey's, the ADR for CMs is easier than CRT, less "fancy" not having the plated food, and Chef Mickeys was really FUN!
I had talked up the CRT breakfast to my girls much more than Chef Mickey's, but I think they loved both about the same, maybe even had more fun at Chef Mickeys (certainly DD6 did, DD10 was not impressed with CRT, or wasn't feeling well or something!)
So, I guess my suggestion would be Chef Mickeys.
Have Fun!