I thought this was one of their best episodes. Each of the actors played their respective roles well. I loved that Sam trusted Dean's judgment about his father being possessed and listened to Dean instead of John begging him to "kill" the demon (and ultimately John himself). That's even reinforced when Sam tells his father that killing the demon doesn't come before everything, and looks at Dean in the back seat as he says it. Great stuff.
Loved the kick-ass ending of the crash - absolutely one of the best finales ever. And I give Kripke credit - if the series was renewed and the brothers survived - good triumphs over evil; if the series is not renewed, then evil triumphs over good as it sometimes does in the real world. Win-win!
Jensen knocked that exorcism scene out of the park. Actually all of his scenes - at the car and in the cabin with both Sam and demon!John. For those who may not have recognized it before, it really drove home what a talented actor Jensen was - and is even moreso now. :)
