Of all the islands those are the ones Disney returns to the most frequently so we've spent a few days in Antigua and St Lucia. We only spent one day in St Kitts and didn't enjoy the excursion there either, but that may have been a one off. We don't really care if we go back either way though.There isn't anything particularly wrong, there just isn't as much to do and choose from as far as excursions go. The people weren't as friendly and the ports were not as clean as some of the other choices we've also been to. For every island though there is a fanbase - thats why I am saying to forgive my bad taste.
Our absolute least favorite was Grenada and yet we had fellow cruisers who said they had their best port day there. There is no accounting for taste and I'm sure if you go it'll be a great time!
I'll keep hoping they return to the ABC islands, personally!