We stayed on Antigua for three nights on the way to Barbuda :( in February. We stayed in English Harbor and got around a good part of the island while sight seeing. I can't speak for the beaches but the ones we saw from the air looked lovely. We felt safe travelling with our then 11 yo son. All the residents we encountered were warm and friendly.
I got the impression from a few expats we spoke to that there is a good vacation rental market on the island.
We stuck to local restaurants and enjoyed all our meals. I was shocked to see "deer" on the menu. Apparently deer are/were hunted on Barbuda and the venison sold to the Antiguan restaurants.
I was actually thinking about checking out Grand Cayman. It looked like it had some nice beaches, but the bride won out and we actually ended up booking a vacation to Caye Caulker Belize. It looks to be a very laid back place. I don't think that there is going to be a bunch of great beaches but I am hoping for at least one or two. It is going to be a new experience for sure.
I am excited about a new adventure. We will miss or time on St Martin this year but I do know one thing for sure. We will have a good time where ever we end up. That is just the type of people we are. Thanks everyone for your advice. I am going to continue to look at other locations too because we may want more then one vacation this year.