Hello, Faith!
This is a great question!
First of all, the further a Resort is from Magic Kingdom, the quieter any park sound will be at that location...fireworks included. Take a look at this
map of Walt Disney World so that you can see where each of these three Resorts are located in relation to Magic Kingdom.
I would speak with a Cast Member to find out the exact locations / building and room numbers of those rooms and villas from which you cannot hear any of the fireworks at all three of these Resorts. Each one has locations where you will not hear much ambient noise once inside your room.
Even while staying at Bay Lake Tower at Disney's Contemporary Resort, for example, with a Bay View Villa, in a floor that's high up in the Tower, you can not only not hear the fireworks at all, but will also not hear much from the lake many stories below. (Water traffic horns, music from the pool, etc...) The glass in these units is extremely thick; you'll be impressed with how sound-proof they can be.
That being said, you want to be sure that your daughter's needs are met, and that you are located in a room which will cocoon you from as much outside noise as possible. Asking a few questions of the Cast Member who can assist you with booking your resort stay will surely lead you many, many options, all of which will make you and your daughter smile.
Send more questions as you think of them! We love to help!