Pretty tough to pick but i would say AC2 for sure. I loved brotherhood and I personally think that AC2 and brotherhood were by far the best games from the series. Revalations I didnt mind, but I felt like they could have done more with the story. I hate the Ezio's story ends and the only thing I didnt like about revalltions was desmonds stupid sequences. I thought that was the most boring part of the game and took away what they did it previous ones.
181 completed games: 117 retail, 56 arcade