You're best bet is to request a room on a high floor, overlooking the main resort pool. The further you go down the corridor, the better view you will have, IMHO. Perhaps request high floor, main pool side, view of fireworks.
The chances of getting a view of fireworks from your CCV are slim. The north wing of the WL blocks the fireworks view from most of the rooms. There are some villas, though, that might have a partial view of the highest fireworks. But if you don't mind taking a little walk, there are some good views from other spots.
Geyser Point Bar and Grill pipes in the fireworks music and there is a nice view of the fireworks just outside of the restaurant. There are great views from the hall windows in the main WL building. They are on the 4th to 6th floors and near the elevator closest to Roaring Forks. You won't be able to hear the music from the hallway windows but it is a fantastic view. You can even see the castle from the windows.