Really hope Kingston (or Handel/Perdue, but Kingston's been fundraising better) can coalesce the not-Gingrey-or-Broun vote to a spot in the runoff. The fact that right now the likeliest scenario seems to be that Gingrey wins a runoff with Broun for the nomination and then a runoff with Nunn for the Senate seat itself...gah.
Kingston is a king appropriator, don't want those types to be rewarded for that behavior.
Paul "Evolution Isn't Real" Broun and Phil "Todd Akin Was Right" Gingrey are much worse and need to be kept out of the Senate at all costs. (Especially Gingrey. Broun, as noted above, at least has
some redeeming qualities; I'm hard-pressed to think of any reason to support Gingrey beyond "Republican Senate majority".) Of the Republican candidates, Eugene Yu seems like the best, followed by Handel/Perdue tied, then followed by Kingston, but tactically speaking Kingston is in third place behind Broun and Gingrey in the primary and is the strongest fundraiser; he can deny Broun/Gingrey the nomination. I'd much rather one of the lesser candidates did so, but helping them out is just splitting the anti-Broun/Gingrey vote.