well, the way I see it, if guys complain about girls going for "jerks" as they see them, they have only themsleves to blame.

First off - why do they view them as jerks in the first place?  Is it just a general dislike of the person, or is it some kind of jealousy complex because they see these "jerks" as only wanting to get into a girl's pants or something - when in reality they could be projecting their own insecurities about wanting to do the very same thing(although with "higher" motives, they say).
Lastly, is it a girl's fault if the "jerks" make themselves known far better?  How the hell is a girl supposed to "look into someone's heart" or "find the good, quiet guy" when they're too shy or nice to make themselves known properly, and really sell themselves?  Why would she just walk past all the confident, attractive guys to go look for the quiet guy standing near the wall, staring awkwardly?