For a good example of a thoughtful and honest critique of Hitchens see Juan Cole’s article at Salon Magazine. Cole provides a systematic and educational demolition of every one of Hitchens' points.

Quote from:

Christopher Hitchens' last battle

“These bellicose intellectuals–a band of Wilsonian idealists, cutthroat imperial capitalists, Trotskyites bereft of a cause, and neo-patriots traumatized by Sept. 11 are now increasingly divided and full of mutual recriminations. Among them all, the combative British essayist Christopher Hitchens continues most forcefully to uphold the case for the war, most recently in a piece for the Weekly Standard.”