I have little faith in a system that puts Ron Paul closer to authoritarian than libertarian.
'Libertarian' views are mainly economic (e.g. taxes, withdrawal from the WTO). On that matrix social issues are on the vertical scale and economic issues on the horizontal. His stance on social issues are mostly conservative - pro life, pro gun, anti immigration. However, he scores better on these than the other republicans as he simply says leave it up to the states to decide.