To me it's the genetics, intelligence, culture .. I'm about 5'11 , English, French, Italian, German mix .. if I could choose what I'd want my descendants to be , I'd prefer Asian mixed with my European heritage to create a somewhat 'super human'. Taller then the average Asian, perhaps more athletic but also above average intelligence too. I've seen some mixed Asian/Caucasians before, and generally they look amazing.. perhaps it all depends on the luck of the lottery. However -- The Asian women I've come across who go for Caucasian guys , are generally more liberal and the conservative ones perhaps stay within traditional heritage and those are the ones who I'd find more attractive.