@OGIONIK,
you should read the book "American Gods" by Neil Gaiman
it's an interesting take on the idea of old gods versus new gods
the basic premise of the novel is, as settlers came to the new world they brought there gods with them, but america soon became a land of new gods, the gods of technology, pushing the old gods away, now comes the time for the final stand, old against new
a pretty cool book
as for a mythology, i'm going turn to Mr. Gaiman again, his concept of the endless in his comic book series the sand man is just so cool
The Endless
it's a great series, 75 issues that form to make a single story when read together
one of my favourite quotes from Dream's sister Death
"When the first living thing existed, I was there, waiting. When the last living thing dies, my job is finished. I'll put the chairs on tables, turn out the lights and lock the universe behind me when I leave."