I'd place a FoS on Darwin and a HoS on Mr. P still.
I'd like to think people learn from their past mistakes. The same applies to the way you play each game.
For me I like to play different each game with a heavy focus on one strategy and see if it works. In doing this I have hope that in the future I can integrate every strategy as the situation calls for it.
If Mr. P played one way as a mafia in a previous game, it's entirely possible that he could have learned a bit from his mistakes in the past and be trying out a new way of playing. This is assuming he's willing to try to learn from the past.