My "true" obbsession is religion in general, but of course that tends to overlap with mythology. My favorite are probably Norse and Roman, although I also like Greek, Egyptian, Mesopotamian, and a whole host of others. I also like how the different mythologies can sometimes be interchangable, like one god or goddess can be thought of as simply another name for a god or goddess in a different religion. You see that allot in Vodun (known to most people as VooDoo) and Santaria, where the gods of Africa, are interchanged with the gods of South American Indians, and in turn, are then interchanged with Christian saints and Angels. Fascinating stuff!