I agree with you that of the three, Rachelle Rak was the best, for all the reasons you mentioned above. But I do think Liza, because of her natural persona, had a sense of playfulness which the other two didn't quite have. Also, Shannon suffered like any performer does by having her terrific performance filmed outside without the benefit of theatrical lighting, etc. And notice please how Rachelle's final pose is captured and held in an amazing way which the other two didn't have. One of the specific improvements which the Fosse show's production had. But hats off to all three ladies for performing to my mind one of the most demanding choreographies in history. AND singing at the same time. I am out of breath just watching them.