Considering I have a Xbox, Windows 8 laptop, and a Windows Phone, I have to go with Microsoft. Although they could improve it quite a bit. [quote]I was going to say Nintendo, but they mined all of their Nintendium which was a primary food source for their ecosystem.[/quote]I use to really like Nintendo's portable gaming, although after a while I got board of what seemed to be the same games over again. It's been a while though, maybe they have some cool, new unique titles. I can't really speak for the Sony side though, I only have a PS Vita.