My favorite from PS2. It scales back a lot of the problems I had with AC5 being a smaller but more concisive game. The plot didn't reach the heights of AC4 but it is the better game and I really enjoyed the last twist and final boss. The cutscenes are somewhat of a highlight too, many of them pretty memorable and the styles are a pretty nice addition.
It just feels better to have only one team partner to equip too.