I'm currently anchored off Green Island in Antigua, one of my favorite secluded anchoring spots. There are a lot of choices here in the windwards islands.
I typically go south from St. Martin in a leisurely manner. From St. Martin to St. Barths. Then to Antigua either directly or via St. Kitts and Nevis (depending upon winds and weather). Then to Guadeloupe and some quality time in the Saintes before continuing on to Portsmouth in Dominica. From there to Martinique, St. Pierre or Fort-de-France before ending up in St. Lucia.