Well, I'd have to go with Persephone, my aussie water python. She isnt my first snake, not my most expensive snake, or even my most beautiful snake, but she is my most intelligent snake, and the one with the biggest personality. She is tempermental, and demands respect, and seems to truly "study" people in the room, she acts like no reptile I've ever owned. She will actually sits and watches people from her branch in her cage, seemingly for her own amusement. She is a somewhat rare species in the us, and I can't help but wonder if all water pythons act this way, or if it's just her. I don't have a pic of her on photobucket yet, but gave her as my avatar pic.