Gears of War ONE would make me buy the system immediately.
I bought my 1st 360 just for Gears 1.
It broke and it got fixed and then it was modded, so no online with it.
I bought a 2nd 360 JUST so I could get Gears 2 and play online with it.
Though, considering I'm such a big fan of the multiplayer in that game, I can't believe that I haven't been the slightly bit interested in playing Gears: Judgement. --- Worthy Indie: Magicians & Looters -Breath Of Death -Cuthulu Saves The World -EvilQuest -Trino -Shoot 1UP -Your Doodles Are Bugged -Vintage Hero
The Witcher 3. Nothing else even comes close for me this year. Though rounding out my top 5 would prob be Quantum Break, Destiny, Titanfall and Elder Scrolls Online. But I'm really hoping the next few months are going to have some really awesome announcements for new next gen titles. I'm looking at you fallout 4!