Hi, Regina!
You are going to love the
Fantasmic! Meal Package with its great restaurant choices and VIP seating!
While all 3 choices are great, I would opt for Hollywood & Vine. With having a 7 year old in your party, I like that Hollywood & Vine is a buffet, so little to no wait for your food (more time to play in the park!) and also there is such a huge selection! There is something for everyone on this extensive buffet.
My second choice would be Mama Melrose's with their menu full of delicious Italian dishes! My third choice would be Brown Derby, only because I think your grandson would enjoy the food selection better at the other restaurants. Brown Derby is a bit more upscale, and might not have as many of his favorites.
Whatever you choose, have a great time at Fantasmic! What a great way to end a fun day at Hollywood Studios!