Very few of us are "perfect", there is so much that goes into making a person - both physically and mentally... depending on factors, it could be considered shallow. But you're attracted to whatever attracts you, there isn't too much you can do about that.
And no matter the score, beer goggles makes a few points to anyone
Okay, when it comes to just wanting to fuck someone, then you're going to looks. Maybe brains comes later. There are a million combinations that can make a person (lets say a woman) an 8 or a 9. One man's 7 is another's 10. There are actresses who I would fuck if given the chance - but I wouldn't leave my wife for. There are actresses / celebs - who I consider - "ugly". Kim Kardassian (?), to me - is kind of ugly. She has no talent, other than born into money - sucked a big cock which everyone saw, she's got big tits and a huge ass. I'd even find Snookie to be more attractive and I think they are both skanks. Also, when it comes to super models and actresses - its important to know that they are made up. They have make up and lighting to make them look their best, or actually better. Same for women going out onto town. So for me, I don't like make up women, only a little should be needed. Think of Mila Kunis, she is one hot little babe in the various movies she has been, such as Ted. Without make up... she is bland to... ugh. The Kunis I want to have sex with, has makeup on. There is a reason women put makeup to bring out their eyes and make them bigger - its generally more attractive to males.
I find my wife to be quite cute and attractive without any makeup. When we go out dancing, etc - she'll do some make up in whatever style needed for the venue. She gave me a photo of her glamour shot from years before we meet. She looks glamour/model great in it. Which is not how she looks in real life.
So numbers... I've had fun with a couple of 9s. I consider them "exotic". One had drinking issues - the other was a bitch when intoxicated. Also consider, 9~10s have to deal with so many guys trying to pick them up - so they may rightfully have some attitude. I've meet some 9~10s who know they are that high, and will ONLY date men with MONEY.
It takes a proper mix of face / body / brains to get that attraction level that'll work for you. So you say FACE. Okay, she has a *10* face, but weights 350lbs. Would you still choose to date or have sex with her over a woman who has a *6* face, but a model's 115lb body? Okay, lets say - you did get in bed with a 10/10 (face/body) - but she lays in bed like a sex doll, no reaction to your penis in her body and maybe fake grunts it. Vs. a girl with a 7 face & 150 lbs who squirts as you fuck her, nipples hard, wants you to bite them as she pulls your hair and screams "OH GOD! YES!".
With my wife, her cuteness got us talking. Her personality turned me on. While she is not a model (exotic), she is naturally cute and I love her smile. I love her body, her fingers, her arms, her breasts, her back, her belly, her vagina, her butt, her legs... her toes - well, lets not talk about those... but they are FAR better than those I've seen from celebs who mess up their feet to fit into tight-high heels. She doesn't have B or C cup breasts, but I'd never want her to have a boob job.
Of course, when its 3am - they're about to kick out the last stragglers in the club... that girl who you consider a 3 earlier, is still likely than not - is worth a chance over your hand.