Alvin Plantinga has a review of Dawkins’s God Delusion here.
Now despite the fact that this book is mainly philosophy, Dawkins is not a philosopher (he’s a biologist). Even taking this into account, however, much of the philosophy he purveys is at best jejune. You might say that some of his forays into philosophy are at best sophomoric, but that would be unfair to sophomores; the fact is (grade inflation aside), many of his arguments would receive a failing grade in a sophomore philosophy class. This, combined with the arrogant, smarter-than-thou tone of the book, can be annoying. I shall put irritation aside, however and do my best to take Dawkins’ main argument seriously.
The God Delusion is full of bluster and bombast, but it really doesn’t give even the slightest reason for thinking belief in God mistaken, let alone a "delusion."
The naturalism that Dawkins embraces, furthermore, in addition to its intrinsic unloveliness and its dispiriting conclusions about human beings and their place in the universe, is in deep self-referential trouble. There is no reason to believe it; and there is excellent reason to reject it.