Sammy
Palm Beach was much too crowded and noisy for my liking. It was hard to get a palapa unless you got up at the crack of dawn every day (which I ended up doing), and the jet skiis, etc. drove me nuts. That's probably why I so much prefer St. John, the BVI's and certain areas of the Mayan Riviera (but NOT Cancun). I am also a diver and snorkeler, and the diving on Aruba was marginal at best, and the snorkeling, except for the Antilla wreck, was very unremarkable.
I also didn't care for the landscape - a desert with a beach. I prefer mountainous, lush landscapes. We did rent a jeep and went to the Natural Pool, and around the entire island, which was fun, but after one day of touring, there wasn't much to do, and I'm a very active person. I felt stuck on the island, unlike the Virgin Islands, where you can day venture away. If it wasn't for the windsurfing, I would have been ready to go home in 3-4 days.
The good points - The Marriott Ocean Club was great (although we got a crappy locale as exchangers), and all the meals we had were great.
We went beacuse I happened upon a Marriott week just sitting there on Interval, and since I don't like the Miami Beach atmosphere I found there, I won't be back. I'll pay to stay on St. John, in Tulum or Akumal next time I go to the Carib.