I can't vote on the poll, but my vote would go to Sony with Nintendo at a close second. Really Sony gets it for being a better package for the future. Sony's press conference showed they still have new games coming out and they're breaking the mold with old games (GoW). I think the new GoW, Horizon, and the exclusive Spiderman game won it for them.
Nintendo pretty much just showed Zelda, but it's pretty much the Zelda people have been wanting since forever. It as of right now, is probably my dream game. Nintendo succeeded in proving it can still pull the masses by having Zelda trending #1 world wide on twitter, and it being the most talked about game of the conference. If they can follow up with a solid NX presentation that includes more Zelda game play, they could sell a shit ton of units off that game alone.
As far as Zelda not doing anything really groundbreaking, I'd say it's groundbreaking for the series. I think it combines stuff seen in other games, but I'm not sure if the Witcher or even Skyrim were capable of performing like Zelda did. The idea of an open world and the ability to bend the physics in the game to alter and customize your gameplay is too much for me. I don't know if Witcher 3 lets you do that, but I'm going to buy Witcher 3 now because of Zelda, so they can't be too mad.