The JWs would say that you would never choose to sin in the first place. The trials of this system and the post-1000 year trial by Satan would make sure that anyone who gets that far would never turn against God. However, QC may have a different answer.
I'm more interested in hearing QC explain why Adam and Eve's sin had to carry down to all of us. He seems to treat imperfection as a natural consequence of sin. I'd like to hear how that would work on a genetic level. It sounds like God designed some sort of boobytrap, and I'm just wondering why he would do that to the rest of us.
Actually, truth be told, I'm more interested in hearing more about Captain Obvious and his wife fooling around, as it's a much more relevant and tangible subject than reconciling modern science with ancient man's thoughts on why snakes don't have legs.