Truthexplorer,
Every good story has to have a super villain. But I don't think the buck stops with just Satan. How about the fact that God doesn't do anything for anyone when they need clear answers for the severe problems or crisis of faith that they are facing? All we have to work with is a vague human sacrifice that supposedly happened in some remote place two millennia ago. Then we have a bunch of confusing, poorly written scrolls mashed together to make the modern day bible. I'd say there is plenty of blame to spread all around. I don't see god spending much time clearing up the confusion (unless it's to help someone find a roof leak so they can attend a convention).
Also, I agree with everyone's thoughts on David. I liked him as a kid because he slayed a giant. Nowadays, I'd bet killing a giant would get you disfella-shipped, or worse, put you away in a maximum security prison for a very long time.