Special kudos ought to be sent out to Ronstadt who, more than anyone else on this list, has successfully taken on the challenges of the various genres. Whether it's country, torch, Mexican, classical, rock, or whatnot, Ronstadt has tried and nailed just about everything thrown at her. As good as many or most of the leading ladies listed here are, Ms. R. has done it in style and a way that no-one has come close to beaing.
BTW: One more name for the lists: Annie Haslam
BTW: One more name for the lists: Annie Haslam