I've never much liked sentences that start "Critics argue that...". Here's an alternative I saw at [[Tied Test]]:
-- Some commentators believed Chappell should have taken Snedden's word that the catch was good. --
I find this to be more natural, less contrived, and more NPOV. "Critics" seems to imply that the people had it in for the subject of the article for some reason. "Commentators" is much more neutral - just (presumably somewhat notable) people who expressed an opinion on the event.
Any opinions? Other alternatives to the infamous "critics"?
Steve