Rand Paul and Ron Paul claim to be libertarian but are more states' rights, and are noninterventionist and stronger on civil liberties.
Perot was a paleoconservative, protectionist businessman.
Gravel (who I assume you mean) is a libertarian Democrat, wanted a national voter initiative, a fair tax, and single-payer healthcare.
Nader was an environmentalist, wanted campaign finance reform, universal healthcare, free college, more housing subsidies, less harsh drug laws, and a higher corporate tax.
Kucinich wanted singlepayer healthcare, free college, protectionism, civil liberties, end the death penalty, create a "Department of Peace," end war on drugs, legalize gay marriage, more gun control, instant runoff elections, drinking age at 18 and voting age at 16. And ending visas used by illegal immigrants to get in the country.
Perot is not a paleo. Being pro choice on abortion is anti paleo even though he is economically paleo in protectionism. The Paul's are more paleo.
