I'm going with Sven. He was pretty damn intelligent to coast through school and college on straight A's, and to develop a means of getting cash without hardly working. On top of that, he's essentially able to read people and respond to girls in the ways neccesary so they'll do what they want.
Yeah, he's had slightly sociopathic tendencies, but dumb sociopaths don't tend to do so well. What he lacks in abundance is wisdom, which is something completely different