This sounds like a lot of grumpy middle aged people, who are annoyed that pretty young women are earning more attention and loot than themselves. What we find attractive and unattractive in bodies or more importantly people, will always differ from person to person.
To get back to the original question, I think it means somebody who has managed to make themselves look a certain way that many other people wish to look at them.
Personally, I dislike fashion anyway - particularly clothes which look as if they would be uncomfortable to wear and make up. However, most woman who do not over eat, do some exercise and do not poison their skin with make up and cigarettes tend to look healthy, fresh and fit anyway. (I will freely admit that I am merely talking about what I like personally). If, in addition, she is confident and feels good about herself, without arrogance, she will probably come over as attractive to me.
Becoming a super model may well be beyond the reach of most women. I do not think many aspire to it anyway. However, being attractive is not. I know many atractive women.