A review of a 60-year study shows that men worry more than women do about penile size. Men, it seems, measure themselves against other men according to that li'l ol' pocket ruler. Women just like a man who's good-looking, confident, and considerate in bed, regardless of -- and sometimes because of (who in her right mind wants bruised kidneys and other internal damage?)-- smaller endowments.
I'm betting that, if they've done a similar study of women, they'll have found greater worry than in men, over bra size. The men won't complain about size much (if at all)... as long as they get to play with them thangs.
And I suspect there's a strong concern, in dogs, over the size and fullness of their supper dishes.