It depends on where you are coming from and searching. Puerto Rico is nice if you want to experience U.S. stuff and not have a massive flight. I enjoyed the beaches in Saint Barths as well as nice French restaraunts. It also has lots of expensive shopping. I have done the hike to the top of Saba a few times and if you into nature, I hear the Eco Lodge is fun if you want to stay overnight in Saba. The Rainforest was nice for pics. Anguilla had the best beaches, but the hotels are expensive (you can do a day trip from Saint Maarten by ferry). I live in Saint Maarten, it has lots to do, just gets old when you live there, but may be a nice way to spend a three day vacation.