For those of you who believe that women prefer jerks, what sort of behavior do you actually mean?

An accurate analysis of this issue would require unpacking the cluster of traits implied by the word "jerk," and then dividing them into several categories:

• Traits that are indeed actively attractive to women, or some subset thereof.

• Traits that are neutral per se, but have a positive correlation with others that are attractive, or negative correlation with others that are unattractive.

• Traits that are unattractive, but easily overshadowed by other less obvious (or less mentionable) traits, which produces striking but misleading examples where it looks like the "jerk" traits are in fact the attractive ones.

This is further complicated by the fact that behaviors and attitudes seemingly identical to a side-observer (especially a male one) can in fact be perceived radically differently depending on subtle details, or even just on the context. This makes it easy to answer accurate observations with jeering and purported reductio ad absurdum in a rhetorically effective way.

What proportion of women are you talking about?

This question further complicates the issue. Different types of above listed traits can elicit different reactions from various categories of women. However, even just to outline these categories clearly and explicitly, one must trample on various sensibilities one is expected to respect in polite society nowadays.