I'd prefer a neither answer. Rand Paul is less so a libertarian and more so a regular conservative. Ron Paul is a bit better than Rand Paul is, but I strongly disagree with his interpretation of the constitution.
We don't have that much else to offer outside her. Warren might be runnable in 2020, but doesn't want to run now. Biden is........Biden. I like the Castro brothers out of San Antonio, but another cycle should be good to harness the growing Hispanic population trends there and nationwide. Outside of them and cuomo (promising), there's no one the Dems can run that would beat the GOP nominee.