If I am just purely judging a man's sexual attractiveness on the basis of physical appearance, I would say that the amount amount of fat I find acceptable is directly proportionate to the amount of muscle and perhaps body hair, he has also. Thus, I am attracted to out-of-shape ex-football player types and too-many-flapjacks-for-breakfast lumberjack types and any guy whose bigness makes him look kind of like a bear, but not guys who could be described as soft due to their overweight.
As far as height goes, I guess I follow a similar rule. I once had a lover who was only 5'2" but he was very sturdily built and very Alpha in personality. He was also one of the best lovers I ever had, perhaps due to the fact that his mouth was pretty much right at breast level when we had sex.
Of course, I am HD so I find myself attracted to men for all sorts of quirky reasons that have little to do with conventional standards of physical appearance. For instance, I once found myself strongly attracted to a guy who was not very good looking because he had the habit of combing the hair on his leg unconsciously while watching TV. His level of comfort with his own body was erotic I suppose.
"Tell me, what is it you plan to do with your one wild and precious life?" - Mary Oliver
