I still enjoy discussions about religion, but I tend to avoid debates about individual faiths themselves. There is nothing to debate, really. A person believes what they believe. There is no right or wrong in it, just different.
I might debate the merits of faith-based education and such, and I'll argue vehemently against any claims that those who lack faith are incapable of being moral because I know such a statement to be false by the way I live my life, but I see no purpose in arguing for or against the existence of God anymore.
I might engage in a logical debate, as I have with moe, about the merits of a specific argument, while being respectful to the underlying beliefs that the person I'm debating has. In the particular instance with moe that I'm thinking about, I formulated all of my arguments from the position that God did exist, not the reverse. found it to be a very stimulating and engaging discussion, which as usual, got crapped on by an atheist who was in the stage I mentioned earlier.