I have to vote for Aruba. Not only is it beautiful with some of the clearest water, but the people are extremely friendly. Out of all the places in the world (36 countries and all 7 continents) I have visited, Aruba is at the top of my list of places to which I wish to return.
Just returned from Punta Canta last month. The ocean was not as blue as we expected and it was a little rough. It did not concern us though, because we had read the reviews before we booked our trip. Since we are from the East coast, we are used to a much rougher ocean. Enjoyed it. People very friendly. Thinking of going back soon. Sundancer Embroidery Fashions Boutique