Youe question is over-simplistic.
There are just a bunch of factors.
Cultural interests. (Music, arts, drag races, etc.)
Personal mannerisms / behavior.
Outlook on life.
Athleticism / athletic interests
It's not as simple as appearance.
Every day, I'm inundated by folks wanting to "meet" me, because they're coming to town, or because they think I'm hot. Let's get real, they think of me as an object. That's the I,I,I, me, me, me, of Gay America. When I reject them, I get called everything from a bitter queen to a racist to arrogant to any number of far-reaching insults. This from folks I've never met. They get all angry that because they feel a sexual attraction to me that I'm just not interested in their hairy fat ass out of shape discreet them. They lash out at my lash of interest which speaks volumes about their own low esteem, but, that's a whole 'nuther discussion.
It's important one not be all accepting. When I pick someone as a friend, a sex partner, a business partner, I THINK first. Much of Gay America seems to have forgotten that.
The two biggest weighting factors I use are if that person is going to be real, and are they fun. Followed by, am I turned on by them.
If someone begs me for sex, as is often the case on a typical weekend, but, they won't give me a name, or a phone number, I sure am not going to let them into my home, much less in my ass. That's just stupid. Unfortunately, that's what DOES go on in gay culture. I had one guy this weekend, who begged, over and over. Hot guy, nice shape, seemed nice, but, was "discreet" and extremely paranoid. I told him you can't be near me if I don't know who you are, period. Sorry. He got all bent, and begged some morn. He turned me on, physically, but, his lack of integrity turned me off in a major way. People of dishonesty, low esteem, and lowest integrity, I would say, aside from tobacco, are the hugest turnoffs. I won't look twice at a tobacco user. It stinks.
Look at a bathhouse. The flying example of complete selfishness and reckless abandon with regard to sex. A pretty sad statement on gay culture, really.
To ask the question face or body, well, that's just a bit shallow. Not that the question doesn't have some merit, but, I think a more well adjusted person looks at way more than that in doing their discovery and evaluation, and ultimately, their judgment in whether or not to be with a person.
Of course, we see folks with bad judgment every day: the guys with HEP, HIV, that have been ripped off or hurt, etc. There's no point in being careless, though.