With the American election looking like it is on a knife edge, it is clear that the voters are waiting on the thoughtful utterances of some random foreigner before making a final decision.
The candidate I am probably closest to is the Libertarian Party's Gary Johnson, but would only vote for him if I lived in a state where my vote doesn't matter. So on balance I want Romney to win.
He's not perfect and my endorsement depends largely on the assumption that some of his worse policies are merely campaign fodder not to be taken seriously- like his rhetoric on trade with China.
But he does have a track record of competence and that is the most important aspect of the job.
Also the Obama administration is not one that deserves reelection- the vast increase in spending even above the levels of the profligate Bush administration is dangerous for the world economy and although it's not my primary concern as a foreigner his domestic policies on things like education and welfare reform are rather destructive.