Easy to leave feedback. I'll just copy my vote. :)

Best Written Story Title: Collateral Damage

Best Written Story Reason: This story gets to the entire heart of the Supernatural universe, doesn't it? Is Sam evil or isn't he? It's obviously John's greatest fear. And of course it has affected all his actions and decisions. You went one step further and threw in the twist of Sam killing Dean too. This made me shiver and it turned the voting in your favor--even though I'm a devout believer that Sam really is an amazing, good person. Great stuff!