Agree with both @
BSRU 's comments.
Natalie is best dancer, Susanna will probably win if what I'm hearing about the votes is right.
My opinion on the "Natalie has danced before" debate is that it is not her fault. The producers asked her to be on the show, she agreed and therefore uses all the tools in her box. For me it should be about the dancing and the best dancer who is obviously Natalie should win. A lot of people clearly disagree with me as she ended up in the dance off, maybe because she hasn't had the "journey" that some of the others have.