I find it interesting how, in discussions on this topic here and elsewhere, people tend to come down strongly on either side.

Perhaps it's careful selection of company, perhaps it's different circumstances (none of us are really the type for one-night stands; note the boy-/girlfriend theme of my post!), or perhaps we read events to fit our theories about how dating works; but I've very rarely read someone arguing the middle ("being a jerk can work with some women, but many other women ultimately prefer a caring partner").