From BBC News: Dr Nick Neave, an evolutionary psychologist at Northumbria University, UK is conducting studies to see what types of dance moves are attractive to women. "What we've done for the very first time is put those things together with a biometric analysis so we can actually calculate very precisely the kinds of movements people focus on and associate them with women's ratings of male dancers."
"We found that (women paid more attention to) the core body region: the torso, the neck, the head. It was not just the speed of the movements, it was also the variability of the movement. So someone who is twisting, bending, moving, nodding...Dr Neave also took blood samples from the volunteers. Early indications from biochemical tests suggest that the men who were better dancers were also more healthy."
Be sure to watch the video in the article linked above, as it contains some of their analysis. I can't wait to see some of your comments!