Hitchens is a "clever" writer and obviously an intelligent guy, but I find him hard to take seriously.* His opinions on everything are so extreme/over-the-top, and he's perfectly willing to resort to well-written sophistry to make a point. In addition, I find him to be a little light on substance.
His columns are very enjoyable to read if you agree with him.
Guy
*I'm sure you can search the politics forum and find that I was singing a different tune a few years ago.