Of course not. But how about a real defense? Instead of, "Kerry will be/wound have been worse", how about saying what Bush will do about problem XYZ?
I am voting for Bush, I have said that all along. However, I do not believe you will have much luck with the undecided if your only argument is the other guy is worse.
For what it's worth, I'm no longer interested in the undecideds. If they haven't made up their minds one way or the other by now, maybe they shouldn't vote.