I am playing Fallout 3 and Borderlands for PC.
I am currently playing Crackdown 2. The graphics are outdated, no story, environments are similar to original and it did not get the greatest reviews. However, it is also the ultimate "sandbox" game where I can just roam around the city aimlessly. I love the gameplay for the most part (driving and hand to hand combat could be much better) and just jumping around and climbing buildings around the city collecting orbs (the most unique thing I like about this game).
This game is not really that polished and could have been much better if they did not rush it to market, but I still love it, just like the first one.