Maybe the answer is that woman who are overweight may not be caring about their body if men are health conscious
If you are saying that as you being a woman dating someone who is a man. that won't be a issue. because it is sometime known that men will get help from the woman who ended up to stay attached to longer to shed overweight issue. And ladies are good at finding someone with good personality than looks. that's how it works.
Men are interested in finding a lady who are willing to take care of her bodies than let it go overweight with carelessness. My sister is overweight and careless and still is single. I often tells her to lay off on junk foods and take care of your body or never get married. My family tries to help her. It is somewhat tiring for us to help her out. Oh well.
Men will go for any woman who go out to do workout regularly than those who are trying their hardest to lose weight all of sudden.
those who are overweight because of pregnancy is different issue. in most case they are already married. I do have a thing for pregnant lady 
I met my ex-girlfriend from Ga. in 80's and she was pregnant that time. (no I was not the father that time).
In my case,
I am not crazy about those skinny or bony ladies like for example Kate Moss or those ladies like Pam Anderson, they are like what AJ said skinny with lame personality but still I am not going for that type. I have dated all kinds and none of them are like Playboy models (thank goodness)
and no I don't go for overweight ladies either so...
that leave me the in between.. so called ladies with meats or average weight that they look healthy than grossly thin or overweight
I have picture of us(another ex-gf from Fla) that I can put up to show example. This pixs was taken in 84 and before we became a item few yrs later. LB3.png LB4.png (warning big pixs )
not even looks like a model right?
anyway, I came across a site while googling for words to use in this post:
http://www.loveshack.org/forums/t79830/ asking meat or bone your preference? interesting..
