I am rooting for Obama. I think McCain will be stuck in the Middle East to maintain the Republican Platform which will hurt the global economy and the U.S. grass roots sector is freaking scary, Obama would move the country forward on a social level that McCain could not.
They are both excellent debaters though and given the near fifty fifty split in support this debate is an unpredictable one.
Don't watch it though, the gong show which is American politics never translates to real life, these debates are super contrived pieces of boring. Maybe if there were some actual difficult or unobvious questions put to the candidates...