10: The pinnacle of womanness. Confident there are not many other women in the world hotter than this one.
9: Almost flawless and very rare. Could be a top model, top playboy centerfold, (nationally amazing, the MENSA of hotness)
8: The hottest girl at the club, The hottest girl at school, etc (more locally amazing)
7: One of the hotter women at the club, one of the hotter girls at school, (upper class of hot women, but not tops locally)
6: Cute girl at the club, in classes, at work, in apt building. Definitely cute, but not tops locally.
5: Average. starting to be unattractive, but certain qualities work in her favor. Nothing major, but minor problems are more common
4.5 and lower: Below Average and no need to rank any lower than this. Major flaws pile up, overweight, blemishes, etc.
also check:
http://www.urbandictionary.com/define.php?term=Hotness%20Scale
The above are for documentation purposes only, with no insult intent for the female population nor do they meet the author's point of view.