Well, on one hand Microsoft simply does not make games that appeal to me. With the exception of Lost Odyssey and Tales of Vesperia they have not had a single exclusive title that made me really want to have their systems. I wouldn't feel anything to see Forza or Halo simply die (I'd feel same way about Gran Turismo and Killzone) from gaming.
Now, to try and be fair Microsoft's big benefit to me is tangential. They provide a strong competitor to Sony which could be argued prevented Sony from becoming an insufferable arrogant monopoly in PS2 to PS3 transition. This, in turn, has made the PS4 a far better designed system for games and designers.
So, in a certain respect Microsoft are perfect. They keep my preferred console maker in check, but I never have to worry about them making a game since 2010 that has me fork out funds for a system just to play it.
