The Hahn/Wiker book is too rambling in my opinion, not focused enough, and the Vox Day book is too rhetorical and not serious enough from what I see of the reviews, although I don’t have the Vox book yet. The books I do have:
The Dawkins Letters: Challenging Atheist Myths by David Robertson (Christian Focus, 2007)
The End of Reason: A Response to the New Atheists by Ravi Zacharias (Zondervan, 2008)
God and the New Atheism: A Critical Response to Dawkins, Harris, and Hitchens by John Haught (Westminster John Knox Press, 2008)
God is No Delusion: A Refutation of Richard Dawkins by Thomas Crean, O.P. (Ignatius Press, 2007)
The Dawkins Delusion? Atheist Fundamentalism and the Denial of the Divine by McGrath and McGrath (IVP Books, 2007)
Dawkin’s God: Genes, Memes, and the Meaning of Life by Alister McGrath (Wiley-Blackwell, 2004)
The Truth Behind the New Atheism by David Marshall (Harvest House Publishers, 2007)
Answering the New Atheism: Dismantling Dawkins’ Case Against God by Scott Hahn and Benjamin Wiker (Emmaus Road, 2008)
bringyou.to/apologetics/GodIsNoDelusion.jpg
I need to go through these more thoroughly since I just got them, but the best ones appear to Fr. Crean’s
God is No Delusion and Haught’s
God and the New Atheism mainly because these guys are trained philosophers and really attack Dawkins (and the rest) at their weakest points. Haught is more an “overview” response to the “new atheism”, while Crean answers Dawkins in detail, chapter by chapter. McGrath’s earlier 2004 book
Dawkin’s God is probably the better (more detailed) of his two books.
I am doing my own
evaluation/response page to these “new atheists” here. I refuse to buy Hitchens’ book in hardback so I will wait for the paperback, or maybe speed read his book in the store. His book is more rhetorical as well, a lot of assertions without real arguments.

Sam Harris
Letter to a Christian Nation does have a lot of objections that need good answers, and it looks like Zacharias’
The End of Reason tries to respond. Atheists do want the “end of faith” but Christians should not want the “end of reason” so I don’t really get the title there.

I’ll summarize the best arguments/responses from all these books if I can. Maybe another unfinished project, I got a lot of those…
Phil P