if you are taking the kids this suggestion should be disregarded, but if it is just you and the wife, scrape up the $$$, and instead of staying at the Atlantis, stay at The Ocean Club. It's 5 minutes away from the Atlantis, so you can get there easily for dinners and gambling, but it is a world of difference. Not over-run with people like the Atlantis. It is a luxury vacation that you and the wife will NEVER forget. If you get a suite, IT COMES WITH YOUR OWN BUTLER !!! A pillow menu (I'm not kidding--3 different choices), Godiva chocolates on the bed each night when the room is made up; anything you want (food and drink-wise) on their own private beach---they'll even turn the lounges for you when the sun shifts. I could go on and on. It is NOT cheap, but it is absolutely one of the most memorable vacations you will EVER spend.
P.S.--if you do end up going to the Atlantis, whatever you do, do NOT go during a school vacation week. The place is even more over-run with people and in addition to having to wait on mega-lines for everything, you will NEVER be able to get a lounge-chair near any of the pools.