I played Gears of War 3 campaign again a week ago.
Played and beat Assassin's Creed: Revelations campaign again after that. I avoided everything that was annoying the first time I played (den defense, renovating all the buildings and having the Templar Awareness raised) and the game was so much more enjoyable.
I started Dead Space campaign again and have been playing that.
I just got Borderlands and been playing that with my buddy. The game is cool, but the story is basically non-existent. You get it mainly through all the text, and I usually can't be bothered to read all that crap lol.