I like both of these ladies.
When I think of Cyd...I think of grace, control, and sex appeal. I am partial to her because she was in the movie version of "Brigadoon" playing Fiona, which I also played onstage. She is a very sleek and feminine dancer.
Ann Miller's style is totally different. She's all about jazz and fast tapping. Her cheerleaderish mannerisms can get a little annoying if you aren't in the right mood. I think my fav. Ann Miller movie is "Kiss Me Kate"
But over all, both of these girls are great. I love watching them!