OK, moderator's in bed, we can talk freely now.

I think Dawkins was the weakest of the three. In some ways he seems to me to be an unselfconscious empiricist. It's no surprise coming from a biologist but he doesn't seem to be seriously aware of the limits of empiricism. Hitchens is by far the best rhetorician. They both have good chapters on religion as child abuse.
Dawkins is more of a straight up defender of evolution whereas Hitchens is way more concerned and informed about the general cultural implications of religion. Plus he's just a sharper wit.
Dennett is the best of the three on the question of the evolution of religion. I think the question of why humans have religion whereas other primates don't is a worthwhile question to ponder. If God didn't give it to us, where does it come from and why does it persist?

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13