When I play Civ V, it seems as though some religions are more likely to be founded by the computer.
For example, in Gods and Kings, it felt like Christianity was almost always the first religion founded. And in Brave New World it seems to be Catholicism.
Is this random? Is there a set "order" in which the computer picks them? Or is there a "favoured religion" based on the particular civilisation founding them? (and thus, since most civs favour Christianity, I see this most often?)