You could make the argument that she had the best female rock singing voice of all time.
One hit wonder, but I'm kinda partial to:
Didn't care much for Rondstadt, because all she ever sang were established hits, and never as good as the original. Roy Orbison was a far more talented singer and she should never have tried to sing Blue Bayou. I did like the one song she had with the Ponies - "Different Drum" or something like that.