Hi Christine, Thanks for visiting the Moms panel!
My suggestion for a breakfast buffet on your Hollywood Studios day would actually be
Cape May Cafe where Goofy and friends start your day off the Disney way. I'm not sure where you are staying, but once you get to the Beach Club, it is a relaxing boat ride away from the Park. You'll walk out of the Resort lake-side and catch the Ferry over to Hollywood Studios.
If you have your heart set on either
'Ohana or
1900 Park Fare, I would choose based on two things. First would your kids prefer to see Lilo and Stitch ('Ohana) or Mary Poppins, the Mad Hatter and Alice in Wonderland (1900 Park Fare)? Second, do you like "Island" food? The 'Ohana breakfast has a hint of Polynesia. For example, "Island potatoes", pineapple, etc. I personally think it's delicious and it's fun to try something a little different. The breakfast at 1900 Park Fare is standard American buffet style cuisine. They do have a great custom-made omelet section.
My order of preference, based on the fact that you are going to Hollywood Studios, would be:
1) Cape May Cafe
2) 'Ohana
3) 1900 Park Fare
Hope this helps and that you have a fantastic vacation,
Kaylene