My3kids, thanks for posting that about the noise with the fireworks view. That would definitely be a negative in our book, we LOVE a good night's sleep. And with 2 young ones, we don't want them up all night, then have to drag them out of bed early to go to the park. Would not be a happy situation.
We have paid for a view room, so sounds like we'll go back to our original idea of the Bonita Tower with waterfall view.
And about the request for a specific view (assuming you've paid for one), I would make your request before you arrive. I was told they make room assignments 3 days ahead of your arrival, so if you have a particular request, make it before then. They'll tell you they can't guarantee anything, but at least your request will be known at the time of the assignment. If you wait until check-in, you might have lost your chance at it.