It's common knowledge that men tend to prefer women who are somewhat slender. Before anyone objects, I know that not all men feel that way. I also know that men have different notions of what slender is, and that men don't necessarily prefer the anorexic, waif-like look. We are talking about generalities here, so let's acknowledge that and move on.(And before anyone asks, I myself have been attracted to moderately overweight women before, especially those with pleasing personalities. So I'm not saying that I would never want to date an overweight woman myself; quite the contrary. I want to emphasize this right now, lets anyone put words in my mouth.)
It's also common knowledge that women prefer men who are tall. Again, I know that not all women feel that way, and that there are differing notions of how tall men should be. As a general principle though, this preference is widely acknowledged.
So why is it that society constantly laments the fact that men tend to prefer thinner women, and yet you seldom hear women being criticized for preferring taller men? In fact, I've seen many singles ads wherein women listed the minimum height requirements for the men that they would consider dating. I daresay that if a man were to list a minimum bodyfat requirement for the women he seeks, he would be considered shallow and overly concerned with appearance.
BTW, don't forget that people can at least control their waistlines to some extent. There's virtually nothing that men can do to change their height.
Mind you, I do agree that we need to be willing to look past the physical. I'm not saying we shouldn't. I'm just saying that there appears to be a double standard at play.