I found Critchlow’s post really intriguing. I personally consider ‘big B’ associated with those who balance between the content and the technology:

When I think about blogging, there is a cross-over between technology and the way it is used. Big B bloggers are those who take each to their extremes. Content is important. But so is process and product. It is something personal, stemming from our changing circumstances and intent.

Rather than Byrnes and Kottke, my ‘Big Bs’ are Chris Aldrich and Alan Levine. Sorry Glen, probably not the suggestions you were after.