How did the US Navy's Fletcher-class destroyers compare with their Royal Navy counterparts?
Short answerThey were very good general-purpose fleet destroyers, comparable in broad purpose to many successful British wartime designs.
NotesThe Fletchers were very good fleet destroyers rather than an exotic exception. Both the US Navy and Royal Navy ordered destroyers in such volume that they could repeat proven designs instead of persisting with a bad one. Their value lay in reliable general-purpose service and iterative production rather than a single headline specification.