The new-to-Hilton Rose Hall Resort and Spa in Jamaica offers both room-only and all-inclusive rates.
You should also look at the resorts in Costa Rica. The Doubletree Resort by Hilton Puntarenas is an all-inclusive resort. The Hilton Papagayo Resort is all-inclusive until Nov 30, but after Dec 1 will be exclusively a room-only rate property.
I don't think the GLON2 would cover all-inclusive properties, but I stand to be corrected.
From other posts on this forum the Hilton Barbados sounds like the best property in the Caribbean.