Lew Rockwell is an Anarcho-Capitalist. Dr. Hans-Herman Hoppe is an Austrian School economist. Both are hard line advocates of the most extreme forms of laissez-faire Capitalism and Libertarianism.
However, in an interview from 2008 Hoppe advocates Monarchy over Democracy and makes a number of points concerning the negative effects of Democracies over the past few centuries. A podcast of the interview can be found here, a transcript here.
Dr. Hoppe covers this topic more fully in his book Democracy: The God that Failed, which can be purchased here.