Well, this is a tough one. Normally, I would have chosen the libertarian in a hypothetical match-up like this. However, Bono would privatize law enforcement and the court system, which means that any protection of individual rights would become meaningless. Absolute anarchism is just as unfortunate as authoritarianism, I think.
Therefore, although his views on social and economic policy are very different from mine: Preston.
I would not get the most extreme stuff out in order to be able to pass the less extreme stuff.
I'm an incrementalist, which is completely diffeent of compromising.
political suicide doesn't help the cause.