Never having played Borderlands 2, nor having much desire to, I recommend....Borderlands 2. You obviously have some interest in it, and I would say it is best to get in on a multiplayer game (I am not saying that multiplayer is all that Borderlands 2 is offering for the record) while there is still people who are playing it. That being said I can honestly say I do not know very much at all about XCOM or Witcher 2. I own DEHR, but have not got around to playing it yet. On a similar note I keep an unread Kurt vonnegut book with in arms reach too. As for the other games on the list I have played all of them. Interestingly enough (to me) all of those games fall into a category of games I call character model eye sores. Where the Character model's body proportions become such a distraction to me, that I start picking a part other aspects of the game as more reason to stop "having" to play the game and continue looking at the character model eye sores. Some games on that list survived a lot longer than others. I played lots of hours of New Vegas, after playing lots of hours of Oblivion and Fall Out 3, if that helps clears up my point a little more.