Fascinating posts Frank. Does God in fact make choices, or is He bound by His own inflexible nature?
Or, does God in fact have the power of choice; and whichever option He chooses, regardless of reason or outcome, therefore becomes the "right" option?
A lot of politicians seem to think that way with regard to their decisions.

If we applied that theory to good and evil, than to experience evil (Dark) you must first have good (Light)
I think this follows the same line of logic as Frank's statement that mercy without perspective & choice is meaningless. I'd say the same goes for bravery or or any act of "good". Similarly, to be truly evil, one must understand the concept of goodness and reject it.
And based on that I don't think anyone is innately good or evil (and, in fact, some unfortunately come into this world lacking any moral compass to calibrate). Saints and criminals are made, not born. I' would like to think that God comes by His goodness the same way. We'll see I guess.