How did Ryan come off as "without knowledge" he produced as much stats and substance as Biden if not more. Biden came well prepared, he tried to turn it into a fight and not a stat match. He knows Ryan is well studied and that's why he tried to make it as much of a "bar brawl" as he could. Ryan is very much a political book worm, he knows his stats and figures.
Biden's arrogance annoys me. Neither Biden or Obama feel the need to apologize for anything and it makes me want to punch both of those douchebags.