Alas, people will continue to argues that democracy is the best form of government despite its various flaws.
In the last couple of years, I've encountered well-reasoned opposing views for the first time.
Let's back up, and consider how to get an effective x, where x is a cup of coffee or a laptop or anything else. One way might be to get everyone to vote on what kind of x they like, and then give that to everyone. This is of course a terrible system, and not Starbucks nor Apple have that kind of system.
Much better to have competition. I'd be terrible at making coffee or a laptop, and it's best that I'm not trusted to make those things, or to choose who would be good at making them. Nor ought I to be trusted with running a country or choosing who to run it.
So, I think an ideal world might be a world of many smaller governments, each competing for consumers/citizens. Apply the creativity and efficiency of startups to the governing industry. I want a world of Singapores and Hong Kongs and Liechtensteins, where I can pick my government provider approximately the same way I pick my ISP or my employer.
Of course there are problems. So solve them! What better decrepit, corrupt, monopolizing old industry to fix than the governing industry? A Peter Thiel-funded startup is trying (http://seasteading.org).
See also Arnold Kling on competitive government vs. democracy: http://smartdemocracy.com/papers/kling_competitive_governmen...
And also see the reading list at the Let A Thousand Nations Bloom blog: http://athousandnations.com/recommended/
I think we all want to be one world with no border without any government whatsoever. It is unfortunate however that a government is needed.
Personally, I favour Aristocracy combined with some form of accountability to the people. Thus a combination of Aristocracy and democracy.