My opinion: All parties have flaws. If the whole world was smart enough to realize what was right and what was wrong, then the world would be perfect, and we could live in Anarchy, which means total lack of any government.
The laws would be:
"Treat others as you want to be treated."
"Do not kill."
"You shall take full responsibility for your actions."
And the people who would enforce the rules would be the people who were somehow offended or caught the person breaking one of these three rules. Of course, this would never work because, we, as a people, are not perfect, in any way, and we have psychopaths that are sometimes born by chance. In any case, since Anarchy cannot work, we should be a Libertarian government, which means, "Lack of a strong government." The government would be there to hold us together, to make sure that we were all fed n stuff, like, the basics that a government must do to keep a country a country, without interfering in personal lives, and other country affairs. We would be like Australia, distant and uncaring. Let's see.. amount of times America has had war while using Democracy.. lots... amount of times Australia has been in wars while in whatever, but cut off from the rest of the world, so basically libertarian if they wanted, almost none... I choose Libertarian. We would still have a strong DEFENSE though, like, militia... incase people decided to invade us... but trust me, anarchists know how to defend themselves, as do most libertarians (or at least I hope so). Basically, no rules, just keep yourself alive without hurting others or any wrong doing that would be immoral or result in a guilty conciounce (major wicked nasty spelling there) ... that's a good way of thinking, isn't it?