interestingly enough, in my current game [only my 2nd bnw game], Napolean took autocracy although he appears to be going for a cultural victory. He has been the leader (culture and score, etc.) the whole game, so I took it too just to keep the friendship intact. We've been friends the whole game, even though we've shared border since the beginning, but we've been in several wars together against the Zulu and Japanese; have tons of trade routes with each other; resource trades, etc. My spies/diplomats have reported several times that he was plotting against me, but so far I've been able to maintain our friendship. In my first game, I took freedom and then the biggies took order, so I had some slight happiness problems for a while - until I got freedom established as the world ideology.