I agree that BoA is the best among N & K, but we do not have much BoA now, and much BoA dancing too. I felt like her era was over...hmm...Milestone's good, but no dance rrrocking tracks. and I still remember my DOUBLE & make a secret & others fandom back in the day, ehh
and BoA is different because her dancing is like a professional dancer, idk how to explain properly...