My vote: http://slackwire.blogspot.com/
krugnuts times 11.
^ I'll bite the troll. This is actually one of the better ones, as it discusses economic research without a political bias. So, no.
Ok, then I vote for MacroMania (http://andolfatto.blogspot.com/) as the worst. You can't object that it has no political bias, it has it.
Noah "My Rich Daddy Fvcks Over the Poors So I Can Free Ride My Way Through Stanford" Smith is pretty bad. All though he is very clear about his audience and what he is trying to accomplish.
He is basically the libtard econ blogging equivalent of those little fishes that attach themselves to the under bellies of sharks (here, krugman and delong) and feed of the scraps the larger fish leave them.