The name coming to mind is Karen Armstrong, who has written a number of books on the Abrahamic religions - some books about all three of them, as well as books on each of the separate ones. I read some of them and thought they were interesting (on a science-for-a-larger-audience level, not specialized theology or history of religion) and not too blatantly biased, though I should add that this was easily eight years or more ago, so who knows what I'd think of them now.