Tough luck. I don't have a candidate that I support currently.
But, I assure you, if and when I do have one, I'll be more than happy to "compare and contrast" him or her with the liberal Mitt Romney. Because, unlike yourself, any candidate I support will be a conservative.
I hope you understand that not having a candidate you support really discredits you.
If you don’t have one, what you should be doing is looking for one, going out and supporting/starting one, or just researching all of the current candidates with an open mind. You shouldn’t be specifically focusing on particular candidates, spending your time trying to tear them down.
People suspect you of foul play, because a true ‘undecided’ wouldn’t be so adament against certain candidates. It takes a 10 minute Google search to find out which one of the Republican candidates is most conservative - probably Ron Paul.
Why don’t you support Paul? You probably do, but you’re afraid it will discredit you even further to say so. Or, you’ll support the Constitution Party candidate, but are just too afraid to say so. No reason to be ashamed of that, but you’re making a political calculation that if you named your candidate it would put your ridiculous attack machine in context, and people would start to blow you off.