I don't get the Paris thing. She has a body that recalls Twiggy and her face isn't that gorgeous. But her being big doesn't mean the end is nigh either.
Thank you for spelling the word "nigh" properly and using it in its proper context.
Like anyone else, she can look good, and she can look bad. Airbrushing helps immensely. :)
It's not about her looks, per se. It's about the fame. There are dozens of girls walking down the street who are better looking than Britney or Paris, but if you ask many regular guys, they'll say, "Yeah, but it's **Britney**! (Or it's **Paris**)"
The most atttractive ones are the ones you know you can't have.