since ancient times, women look for mates in terms of body size cos it directly translates the ability of the man to hunt for food. that's kind of true even today.
according to science, they too smell the man. the sweat smell of a man that turns on a woman indicates that the immune system of his is different from that of hers and that difference will result in a stronger offspring because the offspring will inherit the immune system of both the parents. it's like saying 1 + 1 = 2. but with the vast selection of perfumes available on market, it's more difficult to capture the actual smell of the opposite gender. I am thinking that may be one of the reasons for failed relationships is because people can easily camouflage their original smell with the use of female hunting perfumes.
when I dated my ex, I was attracted to her physical looks. when we were on bed, I was turned on by her smell! She's turned on too. she said I smell sweet to her.
maybe that really is true. but too bad we broke up. she like my face. so I think my face is the physical attribute that turns her on.
I'm not sure about the rest of the females.