I know Kotaku gets a lot of hate but hear me out before automatically discounting things. Kirk makes many points that I agree with and his analysis is spot on with certain things. Some key quotes that I cannot deny at all. Feel free to discuss to your hearts content on whether you agree or not.
Source: http://kotaku.com/5958941/how-has-assassins-creed-iii-disappointed-me-let-me-count-the-ways
The interface in Assassin's Creed III is far too sluggish. Everything moves slower than it should. Weapon selection is a disasterlike many games, you press RB to open up a menu that allows you to switch between your various tools. But instead of popping up an easy quick-select radial menu, the game pauses, zooms out to an entirely separate menu, then lets you move up and down a list of items, rather than around in a circle.
Assassin's Creed III takes place during the American Revolution, during historical events that most people, at least most Americans, are much more familiar with. As a result, the story starts to have a Forrest Gump-y quality that feels more distracting than cool. You say Paul Revere went on a famous ride? Well actually, Connor rode with him! You say the British won a bloody victory at Bunker Hill? Well actually, Connor was there, and snuck across the enemy lines! You say the Colonials held the British at the north bridge in Concord? Well actually, Connor commanded the troops and told them when to fire! Why did he do this? Because the Colonial commanding officer decided to trust this random guy with the task.
Source: http://kotaku.com/5958941/how-has-assassins-creed-iii-disappointed-me-let-me-count-the-ways