Alas, people will continue to argues that democracy is the best form of government despite its various flaws.
What's your alternative good?
Really, I think that there is no such thing as a perfect government, only a perfect citizenry, because the power of a government is always derived from the people within it. A philosopher king would not be able to maintain power unless either A) he was omnipotent or B) the people allowed him to remain in power.