Obama or Hilary will most likely try and take pot shots at the republican party, while McCain actually talks about what he intends to with our country. During the whole mist of it we will hear the words CHANGE repeated over and over from the democrats, with no actual evidence of improvement.
If its Obama and McCain, Oh,Oh. he will be picking answers from Mccain, and that won't look to good. He'll forget Hillary is not there to help him out.