Sunday Question for Conservatives

Well, it's nomination time, isn't it?  Sarah Palin, Mitt Romney, Mitch Dainels, Haley Barbour, Jim DeMint, Mike Huckabee, Gary Johnson, Ron Paul, Tim Pawlenty, Mike Pence, Newt Gingrich, Rick Santorum, John Thune, Rick Perry: how many and which of these candidates (or potential candidates) would you trust to be a reliably conservative President of the United States?