A couple weeks ago, we chose our own desserts, no problem.
Planet Hollywood and Wolfgang Puck's limit your choices. We had no restrictions at any of our restaurants:
Crystal Palace
Chef Mickey's
Donald's Breakfastosaurus
Cape May Cafe
Beaches and Cream (OK, no kitchen sink, which is desert for 12)
Whispering Canyon Cafe (Oop, no appetizer with all-you-can-eat family meal)
Kona Cafe
Ohana
Poly Luau
Hoop-Dee-Doo
Olivia's
Good's to Go
1900 Park Faire
Tony's Town Square
Liberty Tree Tavern
Pecos Bill's
San Angel Inn
Restaurant Marrakesh
Le Cellier
Electric Umbrella
ABC Commissary
50's Prime Time Cafe
Tusker House
Flame Tree Barbeque
A couple guys told me I couldn't get water as a snack, but they were wrong.