I would prefer this option to our current primary and caucus systems for generating candidates:
http://en.wikipedia.org/wiki/None_of_the_above

I'm genuinely curious what portion of the US voting public doesn't vote because they disapprove of the candidates, as opposed to those who simply don't care about the voting process at all. I'd like to think that worldwide low turnouts are due more to disagreement and a perception of not being represented properly, rather than simple laziness or indifference.