There have been many great sequels in the 7 th generation of gaming and some of them are rightly among the very best games ever made. Assassins creed 2 (AC2), Mass Effect 2 (ME2), Portal 2 are among these. Being a PC gamer, I missed out on Uncharted 2 & many other great sequels. But in my opinion, none of these games have managed to improve on their predecessors the way Batman: Arkham City did. A great sequel is defined by the degree it manages to outdo it's predecessor. Every one of the sequels above excelled at that so let me explain why I believe Arkham City managed to do a better job than these great games. Both Mass Effect 1 & Assassins Creed 1 had many tedious & repetitive sections in their gameplay. The gunplay, combat & the recycled environments left LOTS of room for improvement on Mass Effect. While the combat, repetitive information gathering missions & limited environmental interaction did the same for Assassin's Creed. Portal 2 improved...