I feel that Christians enjoy conversations that are unbiased with those who lack theistic beliefs because generally, based on the situations most people experience, the rode the atheism from theism has likely been, to some degree, bumpy and filled with negative reception. Thus, I find most atheists to be very strong in their views and very well-informed, generally better informed than the majority of Christians. In short, they like having debates, arguments, conversation, what-have-you with people that have their data correct and up-front.
"Religion is an insult to human dignity. Without it, you would have good people doing good things and evil people doing evil things. But for good people to do evil things, it takes Religion."
-Steven Weinberg
-Steven Weinberg