On 2 of our 3 BVI trips via STT we stayed at the Hotel 1829. Both times when checking in we were advised to only walk towards the waterfront when exiting the hotel at nighttime. "do not go up the hill away from the waterfront, you will be walking into a bad part of Philly"
Having only been to PHL to change planes we have never seen a bad part of Philly but took their advice.
I would disagree with Cuba assessment...it is super safe IMO on the resorts but that is probably because they are so remote and bad guys are severely punished. On our first trip in the 90's we met a 70 yr old lady who was a receptionist at Capital Records in Toronto. She had been visiting Cuba since the days when the army escorted tourists from the airport to the beaches at Varadero. She said she felt way safer at night than she did in DR or any Mexican resort.
Barbados, we always felt safe in travels all over the island.
Our honeymoon to Negril was the last time we will ever set foot in Jamaica. The beach hucksters stopped being fun on day 2.