Living in the Caribbean at present.
Jamaica (live here) - Couples Swept Away Negril, Rockhouse Negril, The Caves Negril, Moondance Villas Negril, Couples Ocho Rios, Jamaica Inn Ocho Rios, all good. Don't rule it out because of someones bad experience in Sandals. Negril is preference here for the beach. Heading to Sandals Negril this Saturday for the day!!
St. Lucia - fantastic island and a far better "island" experience than Barbados which will be full of tourists. Stayed in Stonefield Lodge which was beautiful, amazing villa with private pool and unbelievable views. Only bettered by Ladera which is unreal. Most rooms only have 3 walls and panaromic views of ocean. Well worth a trip.
Grand Cayman - small little US town in the Caribbean. Ritz-Carlton looked lovely, nice long beach but not a honey-moon destination I would think.
Bahamas - Nassau & Harbour Island - Nassau nice but again a bit US'y for me. Stayed in Compass Point which was fantastic. Day trip to Harbour Island and Eleuthera and Pink Sand Beach. Amazing little place and the perfect "Caribbean" experience. Get around in a golf buggy its so small.