All guys don't like the same type of woman. Some do prefer skinny woman but others like woman with more curves. Some guys like woman of a certain race or women with certain features like blond hair and blue eyes, black hair and green eye etc... Some don't care about looks and instead find women who are funny or intelligent attractive. It just depends on the guy.
Honestly, they have high standards and mostly look for girls who will be stupid enough to do anything with them (if you know what I mean) and at some point they'll give that up and look for a girl with personality, rather then looks. If you're looking for a guy you may have to search harder and go for a guy who prefers a grl with confidence, you just have to look past all the tools.