If you would like to face the parks you need to be in a room on the pool side.
For a great view of the parks you really need to be on a floor quite high up (5/6/7) and central i.e. under or as close to the "Hard Rock Hotel sign". From here you can see some of USF and most of IOA (Hulk/Duelling dragons etc) and a partial view of City Walk. You may also be able to see Sea World.