How well off would the USA be today if John McCain and Sarah Palin had won in 2008?

What would have been done differently? Would we have had a stimulus, or a payroll tax cut? Would Chrysler and GM still be here, or would they be bankrupt? How would the jobs picture look given what McCain and the Republicans favored then and now? What wars would we be out of, and what wars would we be in? Would our foreign policy be more or less effective at securing our long-term interests? When you think about it, does your vision of America under President McCain as 2012 approaches square with the constant Republican claim that Obama has made things much worse than they were in 2008, and that only Republican ideas can fix that?