I was impressed by the research in Pagan Christianity. He lays out nearly 100 references per chapter demonstrating clearly he isn't just a guy who got kicked out of "regular church" and decided it wasn't biblical...I've read them all. Pagan Christianity is the lodestone. The others are good but don't rise to the quality of Pagan Christianity. Viola's passion is clearly home churching, but as the series proceeds, if my memory serves me correctly, he delves more and more into his very particular prescriptions for how to exactly implement home churching.