Given the options available, I will probably vote for Obama. Like all politicians, he is far from perfect. But considering the mess that he inherited, along with the hostility he faced from Republicans before he was even inaugurated, he has done remarkably well. I'm actually surprised that the situation in the country is not even worse.
I also have not heard anything particularly innovative from Gingrich or Romney. It's just the same old story: cut taxes, deregulation, freedom, etc., etc., etc. We have been going down that road for a while, and I am not impressed with the results. And Romney's conservative tough talk when it comes to foreign policy makes me a little nervous.
But in the end, I don't expect the election to make a huge amount of difference. Since neither side is likely to have a significant majority in Congress, we are unlikely to see policies implemented that drift very far toward either political extreme. In my mind, Congress is the ultimate problem with our political system. Some of these guys stick around forever, and they are unlikely to do anything of significance that threatens their incumbency. And without a 60 vote supermajority in the Senate, it's gridlock city.