I have to admit Nintendo was a good surprise at this E3. They revealed several new games and some of them for genres not yet explored by Nintendo (such as Splatoon and Hyrule Warriors). Moreover, the new Zelda seems great in my opinion as the developer described its non-linear gameplay. But I must say the star was Splatoon. Seems fun, original and competitive. I haven't said this about a Nintendo game for a long time.
Microsoft and Sony were poor this time around and Ubisoft saved the night with the new Rainbow Six. Very hard to tell who won the E3 but I would rate as follow:
Microsoft: 5/10
EA: 4/10
Ubisoft: 7/10
Sony: 5/10
Nintendo: 7/10
Prediction made in 14/01/2014 for 31/12/2020: PS4: 100M XOne: 70M WiiU: 25M
Prediction made in 01/04/2016 for 31/12/2020: PS4: 100M XOne: 50M WiiU: 18M
Prediction made in 15/04/2017 for 31/12/2020: PS4: 90M XOne: 40M WiiU: 15M Switch: 20M
Prediction made in 24/03/2018 for 31/12/2020: PS4: 110M XOne: 50M WiiU: 14M Switch: 65M