Both Martinique and Antigua are places you can easily spend your time sailing, without leaving either island.
Martinique for the French culture, beaches, history, food and great anchorages. Definitely a Euro vibe here with a Caribbean accent.
Antigua for the history, great anchorages, beaches. Just not so much for the food. Very British and reserved, as Eva found out.
Either island is a great choice.
You probably can't get to Guadeloupe in that short of time. Besides, the Deshais anchorage on Guadeloupe is really poor when the wind howls at 30 knots and most boats drag or collide with others at 2 am, during a normal trade wind night. But Death in Paradise makes a stop worth it. Well maybe