I found this kind of interesting.. but also really subjective as it's based on assumed answers via study of political voting records & public statements. It definitely re-asserts that most paleo-conservatives like Gary Johnson are kind of right on the moderate line of libertarianism but also farthest to the right. You've also got your Socialist Libertarians from the Green/Socialist Parties way over to the left.
I actually find it kind of ironic that the "Constitution Party" candidate Virgil Goode measured as the most authoritarian candidate. Of course, the only real point this chart tries to make is, as put by PoliticalCompass.org -- "This is a US election that defies logic and brings the nation closer towards a one-party state masquerading as a two-party state."
I probably won't vote (I did in the primary of course) but if Ron Paul isn't on the ballot then would it be better to still exercise in a meaningless charade by writing someone in or simply removing my support for the entire system and hopefully get others to do the same. If voter turnout in 08 was only 66%, I've got to imagine it could be lower this time.