S.T.A.G.E. on 17 January 2015
Playstation is manditory for me for its library as time progresses.
Nintendo for the exclusives.
Microsoft because of Killer Instinct, Halo and Gears of war (as well as other exclusives that might catch my eye)
Don't really care about PC exclusives now that the key multiplats like BF, Witcher, Diablo and other games have made their way to consoles.
