I really enjoyed both of these games, so picking one is difficult. The new Tomb Raider I have heard the gameplay compared to the Uncharted series (which I have not played) more than the previous Tomb Raider games. It has a good story and some interesting exploration challenges. That said I had more fun overall in Arkham City, there is so much to do (I will never get all the Riddler trophies) and is much less linear. I guess I tilt more towards Arkham City, but it's close.