whether a person is called a ringer, is a ringer, etc - unless you really screw things up (cough*shannon*cough) - if you don't have the fans you aren't going to be in the final. You can develop a fan base with your dancing if it is good enough and you aren't particularly disliked. But if you come in without the fans, and without something that brings the fans to your defense - it really doesn't matter.
I didn't feel Sabrina was a ringer - wouldn't have bothered me anyhow. but I didn't particularly like her and didn't feel the popularity she needed was behind her.