This chart shows 380 of the top 1000 most commonly used words in profiles on OkCupid. The color-coding shows the average attractiveness rating of the people using those words. Click here to enlarge.

Upper middle class sports appear to be more desirable.

It's sexier to play against gender stereotypes, than to fall prey to them.

One of the clearest findings: Higher-brow preferences make you sexier. Click here to enlarge.

Sad but true: For men, age seems to equal money. For women, age equals age.

To figure out the elements of a perfect profile pic, we asked OkCupid for the photos of 400 of the highest-rated profiles in 10 major US cities. Click here to enlarge.

...such as looking approachable but not goofy. Click here to enlarge.

Yes, these people are hot. But they're also conforming to a few rules of engagement. Click here to enlarge.

Selfies by women? Acceptable. Selfies by men? Not so much. Click here to enlarge.

Here's a look at what Match.com users describe as their most attractive feature, and what their suitors are actually looking for.

People often say their eyes are their best feature, but that's not what singles care about.

Men appraise women's bodies below the neck and above the knee.

Lesbians, by contrast, are more attuned to the entire package.

Mormon men are the most likely to contact singles outside of their religion.

Money is the elephant in the room in all dating profiles.