The choice between St. Lucia and the Virgin Islands often comes down to what type of vacation you prefer: a more secluded, nature-centric retreat in St. Lucia or a more diverse, potentially bustling experience with options to island-hop in the Virgin Islands.
If you are a diving enthusiast or a history buff, Belize might be the better choice over St. Lucia and the Virgin Islands due to its barrier reef and Mayan ruins. However, if you're looking for stunning beaches with options for luxury stays and island-hopping, the Virgin Islands might be preferable. For a more secluded and natural landscape with dramatic scenery, St. Lucia is a fantastic destination.