Namie for the 2...
IMO Koda aways looks a little lost while dancing, even if her moviments have more passion
as some people said, BoA is better than those 2, but BoA is much more a dancer than a singer
and about Ayu... Ayu is an awesome actress on stage, that's why she "tells stories" with her performaces, but she is a terible dancer... but the girl is ricj enough to pay such good dancers that she can stay there almost static sometimes and people still think she is dancing too
