A week at Sunset House in Grand Cayman. Sunset House is known for the sunsets, but also shore diving. Visited many sites on the west end, and a couple on the north end.
Another awesome trip to Roatan, again staying at the Turquoise Bay Resort, a small resort.
There are many really great diving spots in Roatan, a popular dive destination.
A former vacation spot, I made several dive trips in St Martin. Our favorite operator was Ocean Explorers, they are very accommodating for experienced divers, and do not cater to the cruise ships.