Just so you know, you can actually call Aulani now and request specific room locations, right down to the room numbers. we have a two bed room ocean view, but i called and requested first choice and second choice for room numbers. they have added it to my reservation. in typical disney fashion, they wont guarantee anything, but they usually able to come thru with one of your selections..
example, Ewa Tower, not short wing. 11th floor or higher, then Rooms XXXX ( i gave them 5 room choices ). even though you did it on line, if you know where you want to be, call them. they will add your requests to you reservation.