Sen. Rand Paul appears to be the man to beat in Colorado in 2016, a new poll says.Colorado voters would favor the Kentucky Republican over former Secretary of State Hillary Clinton by 48 percent to 43 percent in a potential 2016 presidential race, according to a new Quinnipiac University poll.Paul also has a higher favorability rating than the other three possible Republican presidential contenders listed in the poll — New Jersey Gov. Chris Christie, former Arkansas Gov. Mike Huckabee and former Florida Gov. Jeb Bush.Paul’s favorability ranking is 41 percent and his unfavorability ranking is 30 percent. Huckabee has a favorability rating of 37 percent and an unfavorability ranking of 30 percent. The other two GOP candidates both have higher unfavorability than favorability rankings.