Candlelight is god. It is a hard light, so it creates the most interesting and defined shadows of the human form. The subtlety of candlelight is beautiful. That's all there is to it.

Firelight is nice as well. It is not as hard, so the shadows aren't as defined, but it is more colorful and warm, and fire usually isn't in a place that would produce much shadow anyway.

Oh my god. I should never have taken that lighting class. In film, they'd call me a cinematographer.