You are going to love
Bay Lake Towers at Disney's Contemporary Resort! I toured this resort when I visited in December and the resort is gorgeous! The rooms are spacious, the anemities are wonderful and the views are amazing.
To be very specific, I've heard raving reviews of room 7525, because it has unobstructed view of the lake and pool. This room is on the 5th floor, and is just down the hall from the bridge and elevators. I've heard that the 5th floor is the best floor in Bay Lake Towers because it is on the same floor as the elevators and the rooms offer excellent views.
There is a very detailed post on the disboards website if you would like more information on specific rooms. There are even pictures of several of the rooms views, so you can see exactly what you would get.
You can request a certain room or floor when you book your reservation. WDW can't guarantee a specific room, floor or section of the resort, but they will do their best to accommodate your request.
Please let me know if I can help you with anything else!
Magically,
Stacy