Ken does a good job and seems like a decent guy. I appreciate his humor on his blog and twitter.
I think the big difference in coverage from AJC is that for many years, they had two beat writers covering GT. Most recent I can recall was maybe Winkeljohn and Rana Cash or Larry Hartstein. When the paper cut staff, that's when Roberson became the beat writer.
From a coverage standpoint, you'd get a notebook and feature almost every single day. Plus, they'd be able to cover football and basketball at the same time when they overlapped. In the current situation, Ken is required to file blog entries, practice notebooks and features. Just not nearly the same quantity/quality of content on a weekly basis.
Plus, when Macon and Savannah had beat writers, there was some variety in the information you'd get on a regular basis.
Nothing against the Scout and Rivals guys, but they come from the world of recruiting "reporting," which is more geared toward rumors and innuendo, so it's not really the same as a beat writer who is regularly writing feature stories and has the ability to file FOI requests.