First, I am more conservative, but am mostly moderate.
Obama has has had four years to run the country, inheriting a difficult situation. Our nation's debt has grown tremendously, and many programs are losing money fast. Although our economy is getting better, we are barely above when Obama took office and the world economy is much weaker. Obama has made right decisions, but other times he doesn't make any at all. Iran has sold one of our Predator drones to China, the Middle East is currently in uproar (may not be Obama's fault, but action to protect our embassies really hasn't occured), and our debt is out of control.
Regardless what Obama inherited, it has been "Obama's America" for at least a year now. He is currently running on a pledge to accomplish what he promised he would complete in his first term four years ago. I don't like what we are currently headed to right now, so I would not favor electing Obama again.
Romney is not a true conservative person. He stands for what he believes. He is not the best candidate to run for President, clearly. However, I believe that being a former person in the business world, he would be better at helping the economy get going again. Romney is not a strong candidate and will not be the best president.
The decision is between two evils, and I think that Romney has shared some of his plans and they look reasonably solid. We have seen what Obama has done, and I don't like where we are currently headed.
Thus the best option is to vote for neither, but not voting or spliting the vote could just lead us down a similar path to now.
Thus my conclusion, the Sensible thing (get it) would be to vote for Romney. A different path looks much better to me than the bleak path we have now.