Just finished a week up that way.
Not many cruisers stop by the Grand Cays. Provisions there are very limited, but it's a nice off the beaten track stop. The main anchorage at Double Breasted is very pretty. Strangers offers the possibility of having an island to yourself.
Our stop at Carter's was very erie. 8 or so almost derelict
boats with nobody on board any of them and a vacant
fish camp. There are still many remains from the missel
tracking station to see. If you have
shallow draft there is some great gunkholing in the NW part of the chain - Joe's Key, etc. I spent a few wonderful days there a few years ago.
The Paw Paw Cays were small, but one island had a small beach. There is currently a home begin constructed on the northernmost Fish Cay, but you can still enjoy the lower cays and likely not see anyone. Moraine is private, and has a home, but many cruiser's stop to enjoy the beach. Umbrealla has a few beaches as well.
South of Allan's, the Hog Cays offer an interesting place to tuck yourself away. You need to enter from the SE to avoid the shallows. Manjack (a.k.a Munjanck or Nunjack) with beautiful beaches and trails is one of my favorites and where I am now.