Yeah, I liked Hammer of the Gods too - or at least, I wasn't horribly confused like some people seemed to be about how the gods work on SPN. Like you said, it's a tribute, but not a copy. SPN is its own universe.

I don't know who reaps monsters...that's an interesting thought.

Maybe you are right about God. He's left humanity to their own devices - even if that includes sad-times for Adam.

I sort of pictured that as God=Life, and Death=Death. When Death reaps God, there will be no more life, and therefore no more Death...so I never pictured Death as being immortal in SPN either. Whether or not that makes sense, though, I haven't really thought about.