Richard Dawkins in The Guardian:
Eloquent, witty, literate, intelligent, knowledgeable, brave, erudite, hard-working, honest (who could forget his clean-through skewering of Mother Teresa's hypocrisy?), arguably the most formidable debater alive today yet at the same time the most gentlemanly, Christopher Hitchens is a giant of the mind and a model of courage. A lesser man would have seized the excuse of a mortal illness to duck responsibility and take it easy. Not this soldier. He will not go gentle into that good night; but instead of a futile raging against the dying of the light he rages, with redoubled energy (and concentrated power in his vibrant, Richard Burton tones) against the same obscurantist, vicious or just plain silly targets as have long engaged him. But he never rants. His is a controlled, disciplined rage, and don't get on the wrong side of it.
Like Bertrand Russell, Hitch “would scorn to shiver with terror at the thought of annihilation”. He laughs off the spiritual vultures eager for a death-bed conversion, and dismisses – but with unfailingly gracious courtesy – the many schadenfreudian prayers for his recovery. As Daniel Dennett said, in similar circumstances, “And did you also sacrifice a goat?”