We definitely have superb dancers in bolly.But to chose the all time best we must see the uniqueness of style, the naturality of movements, grace, the attractive,flexible,and swift body movements, and inherence of the talent and requirement of less training; In my opinion,with due respect to all the greater dancers, Vayjayantimala & Mithun rank very high. Rest many dancers are trained. So less of inherence and largely a training.