Is it just me, who thinks that 8,9 and 10 are the same in terms of attractiveness? I mean I don't particularly think that Scarlett Johanson has an attractive face but she has a nice body. Isn't the girl who you said is a 7 is from iCarly...I think she's a bit young for ya.
Someone could look like a 4, but when you take everything else into account and take the time to get to know her, she could be an 11. Scales are a really bad idea anyway because most non-celebrities don't look like that. So a 5 on the celebrity scale could be an 8 by real-life standards.