My answer is obvious.
Killer Instinct.Bought it for that and just that, Halo and Gears will be bonuses when they release.XB1 is my KI, Skype, and Netflix box. Everything else is PC. And if KI was available on PC, I would not have bought an X1.
My pc is an all in one box as well, but Netflix and Skype app on x1 is better than the windows 8 app, so mite as well use them on x1, but if it wasn't for ki and I didn't buy x1 , id be content with Netflix and Skype on pc.And u so do not understand how deeply my KI obsession runs... for example, don't know if anybody on GATT ever notice, but every single video I've ever uploaded to youtube / GATT... ended with a KI theme song......My love for this one runs deep, I know 2 other people bought the x1 just for that game, and content to not play anything else on the console. Halo and Gears is just icening.And with keyboard / mouse mod available for x1, I'm sure ill love those games. Loved the first halo and gears. We does still sweat gears on pc all now.
I went one step further. 'Played the ones on xbox using mouse and keyboard as well with this adapter