Ron Paul, whose answers are concise, emphatic, and deviate from the establishment orthodoxy regarding the ever expanding reach of American Empire. His devotion to the Constitution has the spike of authenticity, whereas you can imagine Giuliani treating it like a Chinese menu, picking and choosing which articles he's willing to abide by.
Even leftists are impressed by Ron.
(I know I found this post of Wolcott's through a link, as I don't read him generally, but I cannot remember or retrieve the linking website, so thanx and a tip o' the hat to somebody).
That is all.