[do it again]

from what i've seen from these performers, i have to definitely say BoA! she has awesome energy and her dances are choreographed well. Namie is so apathetic when she performs that it becomes more enjoyable to watch her background dancers dance rather than her. Koda Kumi has great energy and it makes her performances more exciting, but her choreography is really basic it's not very hard to do. Ayumi... doesn't really dance at all.