Hi Kayla,
Your trip will be here before you can say, "supercalifragilisticexpialidocious!" I am sure you are getting very excited for this special trip. We are glad you came to the Disney Parks Moms Panel to seek our advice on your evening entertainment at Disney's Hollywood Studios.
While both shows are absolutely spectacular, I would have to recommend
Star Wars: A Galactic Spectacular. The projections and special effects are simply amazing and I always love the music of the Star Wars movies as it is the backdrop of the fireworks display. It gave me chills the first time I ever saw it.
Since this is the newer of the two, it will most likely be the more crowded of the two. So, getting a prime spot to view in front of The Great Movie Ride, will take some careful planning. I would suggest finding your spot no later than about an hour prior to showtime. Again, this is my personal opinion, but I do not think you will be disappointed.
Have a magical time in a land "not-so" far, far away.
~Allison L