Those are not bad choices.
I would put Carol King squarely on that list, and probably above Joni.
Carol was writing number one hits as a teenager. Most of those were with Gerry Goffin, but you can say the same about Paul McCartney being a co-writer.
Then, she becomes a singer-songwriter, and blows out the charts with
Tapestry. Incredible. BTW,
Tapestry was written
after Carol met Joni, so there's some cross-fertilization there.
I say all this and I am not a fan of hers. I am not a fan of
Tapestry. I think her voice is genuine, but not pleasing. The fact that she came in before autotune is good, because I like genuine.
I also don't like some of her early #1 hits like "Go Away Little Girl." I wish it would go away.
Still, I cannot deny her incredible, incredible talent.
And then you have "The Loco-Motion." This song is so good, a demo recording by a baby sitter was good enough.
Perhaps that's her golden touch. She writes songs so good that even non-polished singers like herself or Little Eva can knock them out of the park.