Dawkins treats all religions equally, but as he points out, because Christianity is the dominant religion in Western culture (the one in which he resides and which represents the market for his work), he often uses it as an example. But Dawkins is no more anti-Christian than he is anti-Islamic or anti-Wiccan. If anything, he is kinder to Christianity due to its more civilizing influence.
thanks, I may have to read something of his one of these days. Any suggestions on something of his that touches on more than just Christianity?