It doesn't take a well-versed gamer like yourself to guess what the top Xbox 360 games for 2012 were (based on unique users per day connected to Xbox Live playing full games). Any bro off the street would easily knock out the top three to five title names. Someone like you could probably guess most of the top 10. Not to brag, but I managed to get most of the top 20 Xbox Games in a guess, with the ranking mostly right. Swag central.
For a real test of your knowledge, try guessing the top arcade games, or the top indie games. I didn't fare so well on those.
Look at Castle Crashers still going strong!
See the list of top Xbox 360 titles below, and check out all of the top 20 lists at Major Nelson.
Top Xbox 360 titles, by unique users per day: