I wasn't trying to say she was just a female Tom Jones but I'd also suggest that I think much higher of Tom than you must if you'd consider that comparison an insult. I don't even know what to say about your "talentless Frank Sinatra jab", it would never cross my mind to call Jones or Ronstadt anything but supremely talented. I chose Tom because like Linda, he excelled with various styles. From his Wiki page; he had success in Pop, R&B, Show Tunes, Country, Dance, Soul and Gospel.
Anyway, my point was that her music isn't really my type and no matter what kind of music she was doing, I always heard Ronstadt. I enjoy a lot of what she does, I just don't love a lot of it. I feel the same way about Tom. They each have a few songs I love but neither of them would make my top 100 artists list (not even close) although if someone asked my opinion for 20 greatest female vocalists, she'd easily be there. I love a lot of female artists from Jo Stafford to Billie Eilish and a lot of singers in between; Linda's music just doesn't make my short list. Different tastes is all, it's not a critique of her talent.