I think you mean Joan Baez. Dusty was to Joan as Bell's is to Laphroaig: good, but not in the same league.
You see now you've gone and introduced a further layer of complexity. Joan was a singer-songwriter which in my mind I keep as a separate category, perhaps I shouldn't, but I do. So I have many favourites in this category who I don't put in the interpretation grouping.
So Joan, Joni M. Carole King, our own home grown ones including Alison Moyet (of course!).
Singer songwriters' songs come with the advantage of being directly linked to their creator and that brings a different, maybe unique, perspective to the performance.