I Love SABA. Its the most unique of the surrounding Islands and its like going back in time. The locals are incredibly friendly and its breathtaking! the island is all up hill - literally and its best known for snorkeling/scuba diving and hiking. If your looking for beaches - its not the island. Anguilla is of course the best known for its beaches and a must if you have not been. I would just check on how they are doing with Hurricane recovery and what beaches best suit you. Friends just came off island and told me it was still rather bleak but that the restaurants were running and ok. St Barths is a great island and from family just there, have been told it has bounced back post Irma very well. As everyone knows, its famous for its exclusivity but there are great restaurants and shops and depending on when your there, its a bit of a party scene. Im not sure if I suggest it as a day trip - I suggest spending a few days there to get the full flavor.