Hi Delia,
It sounds like you have some fun dining plans for your next vacation! As a general rule, breakfasts are usually less expensive than dinners. You'll definitely want to use the dining plan for 1900 Park Fare and Chef Mickeys.
I would say that Crystal Palace for breakfast will be the least expensive of the 4 meals, unless you have more children than adults dining with you. In that case, I might consider paying out of pocket for Be Our Guest. The children's meals are less expensive there. Since everything is ordered a la cart, you can really control how much you spend.
I suggest taking a look at the
menu for Be Our Guest. If it looks like a lot of people in your party will want the steak or the shrimp dish, then use the dining plan. If not, pay out of pocket for this restaurant.
Hope this helps. Have a magical vacation!