I agree, like with anyone, your appearance, and the style you adopt an any give time will vary how attractive you look (to different people).***
Personally, I think Ayu looked her prettiest during the Secret period, but she also looked stunning when she made the video for Game, but not so much on the cover of My Story.
I think it`s all down to how she is styled at the time.
*** - Even though, when it comes to Ayu, it's only a very small change, as she is stunning all the time
