I took up Gaston's challenge above with enthusiasm, but found myself very disappointed. As a former Christian with a theological training, now an atheist, I am following "The God Debate" with interest. I enjoyed Dawkins' book, though it definitely has its faults, and was interested to read what seems to be regarded as the best Christian rebuttal.
It is an easy read and makes some good points, but I found Robertson's book very annoying in parts. Again and again, he acknowledges one of Dawkins' points, makes an assertion, does not back it up, then falls back on rhetoric. For example, one of Dawkins' arguments is that the God of the Old Testament is frequently vicious and cruel. Personally, I think it is a good point. I am waiting for Robertson to explain to me how to explain Abraham being ready to kill his son, or Joshua wiping out a nation. But no. This is skated over and we read about a God who is apparently "a God of mercy, justice, beauty, holiness" etc. This is preaching, not argument.
I could give other examples, but this isn't the appropriate forum to continue the debate itself. This book is worth reading, to get a Christian perspective, but its lack of follow-through and intellectual rigour is intensely frustrating. Maybe at some point a Christian will deliver a thought-out, robust reply to Dawkins' arguments. Until then, we can only wait.