The above posters are correct-- the only real difference between the room types is the floor they are on (and thus the view). This property was built so most of the rooms are virtually identical in size and layout.
HOWEVER, on the corners of each floor are rooms designated as Starwood Preferred Guest rooms, which I've been put in several times as a Gold. The upside to these rooms is that they are triangular in shape, with windows running down the full length of the room, so you will have a great view. The downside is that the room layout is quite odd, and the rooms are either much smaller than the regular rooms, or just feel that way because of the odd layout.