Yep, have to agree with Joni.
Mitchell could never sing “Borderline” like Madonna did. Madonna also had a great rock song early in her career but I never heard it’s name. only heard it in what appeared to be night club like film clip.
I think Mitchell was highly overrated, good but not great like Judy Collins who had the voice of an angel Saw her close up in person. Really enjoyed her voice mastery of the music).