This might sound prejusdiced to some people, but the general lumping of women together as "Asian" is silly in some respects. Chinese (like Lena), Filipinos and Southeast Asians (like Francine) and Japanese (like Sakura, Yoko and Rio et al) look very different. Here in Japan, a Chinese is considered as different from a Japanese as a Swedish blonde is from a southern Italian brunette. There is some overlap, of course. In particular, Koreans seem to bridge the gap between Japanese and Chinese and can resemble one or the other, depending on the person.
Generally, my favorites are Japanese and Korean (for a good example of a Korean face, dig out old Porno films featuring Kitty Yung). Many people like Thai women (who look very different) and others prefer HK Chinese, who also look different.
So many women, so little time....