The first digit in the room number is building. The next two digits are the floor and the last digit is the room number. I believe the evens (2,4,6) are pool view and the odds (1,3,5) are outside views in building 1 and 2 and 7,8,9are OF with 8 being poolside, 9 middle, and 7 outside. All of building 3 is OF. I don't know how building 4 works.
Actually, the villas on the sides of Buildings 1 and 2 are classified as Oceanside views. The Oceanview villas are the top 5 floors of Building 4 (the back building) and the top 10 floors of Building 5 (construction just begun).Bldg. numbers 1 and 2 both have ocean front rooms that are directly over the beach. They also have ocean view down the sides (still a great view.) Bldg. 3 is back from the beach, but looks out to the front over the main pool area before you see the ocean. All bldg 3 views are designated as ocean front, but they are obviously not as good as the ones closer to the ocean. If you look at a layout of the grounds, this should make more sense to you. Your confirmation numbers should have the initials as explained above, but remember traders from outside Marriott rank the lowest when it comes to room assignments. It doesn't hurt to ask for what you want, however.