I am surprised I haven't seen John Barsness mentioned more. I really enjoy his writing in magazines and his books. I especially liked "Obsessions of a Rifle Loony". I get a kick out of David Petzal most of the time just cause he acts so grumpy.
Dave Petzel is entertaining, but I dont like to hear him speak on TV. He seems so bored on there, like he wants to be somewhere else (maybe he'd rather be shooting?)