When it comes to female jazz and pop singers of the so-called "Great American Songbook," I think there are so many good and great female vocalists that it's virtually impossible for me to rank them in any kind of order of quality or preference. But when it comes to male jazz/pop standards vocalists, I think there is a very sharp drop from Sinatra at the very top to the next level. Even other male vocalists whose work I adore, notably Tony Bennett, do not compete with Frank for this distinction. I feel that he is truly in his own category. I'm curious if any other enthusiasts of jazz/pop vocal standards share similar views, or if my characterization is unusual.