Little Hawk, with regard to your comment that "Those who love Obama already will usually think he did a wonderful job. Those who hate Hillary already will sneer at everything she says, no matter what it is":

it is also possible that people might assess the past and present statements, policies, and actions of several candidates and their surrogates as a means of deciding which candidate they believe would be the best for that position. And even when they decide which candidate they support, that does not mean that they can't see anything good about the other candidates they did not support.

For a number of reasons, I am a Democrat. As such, I never considered voting for any of the Republican candidates for US President. I am proud to say that I am an ardent supporter of Senator Barack Obama for President. However, I was not automatically for Senator Obama. Initially, I leaned more toward Senator Hillary Clinton. However, as a result of listening, watching, and reading about the policy positions of Obama, Clinton, and Edwards in particular {the Democratic candidates who I believe had the best chance of getting the Democratic nomination}, and as a result of the way the candidates and their surrogates conducted themselves during this campaign, I chose to support Senator Barack Obama. I do so because I consider him to be the best person-Democract or Republican-who is campaigning for President.

This doesn't mean that I can't sometimes agree with the positions other candidates [presently in the campaign or who have since dropped out of the campaign] have stated.

That said, I don't feel the need to advocate on this forum or elsewhere for any other candidate besides the one who I have chosen.

Those who support another candidate can spend their time and energy posting on behalf of that candidate.