We went to the Pinapple Beach Resort and had a blast. Did not do snorkeling there, but heard that you can do it along the beach. This is the Atlantic side of the island, however and though the beach is somewhat protected by a coral reef, I've heard, the water is more turbulent on this side. Here's some pictures of Pinapple Beach Resort taken on our trip in Nov. on the first page...
Antigua Pinapple Beach Pictures