My favourites in the series were Assassin's Creed 1 - For the wow factor at the time and still love it today for the reasons Danny was saying, and I liked Brotherhood for it's freedom and Openness. I have played them all, I really liked the ending of Revelations, but when Assassin's Creed 3 came, I played a one Quarter and then traded it, I felt constricted and to me, it had no flow or the wow factor of the first, or the joy I felt playing most of the others.