We stayed in Bocha Chica on the 4th floor it was back in '99 so I am not quite sure, but we had a nice view of the MK, the castle was a bit obstructed by a tree, but you could still see it.
I think that Conch Key has a number of rooms that have a good MK view as well.
On your request, request a MK view, that is what we did and we were very happy with our room and the view