Rush likes him, Sean likes him and had him on his show yesterday.
I heard that interview with Sean, and I liked it. I don't think Brian Williams is a dittohead, but he is thoughtful, and he IS aware of media bias. He gave a clear example of it, during his conversation, something like "Right wing extremist Newt Gingrich" and said media never says "Left wing extremist Ted Kennedy."
That said, we'll just have to wait and see what Brian does. I don't watch alphanet news, so I'll rely on FReep reports.