What is attractive and unattractive is always relative. I have seen fat girls with thin guys. And fat guys with thin girls. Many people who seemingly had a major disconnect in looks. But both found one another attractive.

For me I am quite OK with a chubby gal as much as a petite gal. But I am not attracted to either extreme. I knew an anorexic-like skinny girl and I found her far less attractive than even a very obese girl. The anorexic gal generated some concern for me because she was clearly starving, but couldn't eat much. Not due to a fear of getting fat, but to a metabolic issue.