We've eaten at CP for dinner twice and really enjoy it ... never been to CM.
That said, we overdid it on buffets this trip (with a 5 adult to 1 toddler ratio, buffets are easier than traditional sit downs for us) and they all started to blend together. We did the Cape May Clam Bake, Hollywood & Vine, and Crystal Palace in three straight days - each was good, but not too distinct from the rest. I would imagine for the menus posted on allears that CM is much the same as these.
If you are set on buffets, try for some variety. Boma and Ohanna (family style not sit down) are different from those mentioned above, as is Tusker House.
Keep in mind that kid options are pretty standard at all buffets ... chicken nuggets, mac /n cheese, corn/carrots, pasta with tomato sauce ... but your child can choose to eat anything off of the "adult" part of the buffet as well.