I don't think rating yourself on a base *average* level is very fair.
I've dated some real lookers that I never would have thought would be interested in me a few years ago,
but I'm a very tall thin ginger guy with dark red hair, and some people hate that look, but some people like it.
So to one guy I'd be a 5, and to another i'd be an 8, it's so subjective, and your confidence level.
The problem is I see a lot of you guys rating yourself 5's, which is bull because I'm sure to the right person you'd be an 8. So selling yourself short doesn't help your cause.