Nintendo without doubt got the most positive, and the loudest reactions during and after the event. If that how "winning E3" is defined, then Nintendo without doubt won. However, this way of "winning" has much to do with expectations from the fans, leaked info, early reveals, in addition to the event itself.
Many, many people miss the whole "point" because of this kind of excitement. How many would have claimed that Microsoft won if Halo 5 was first introduced during this conference? Even though the conference itself wouldn't have changed at all.
With that being said. Nintendo did a great job to please the fans.







