There are no longer single 'winners' of the console wars. Neither Sony, Microsoft or Nintendo are in danger of putting the others out of business. Who 'won' the last generation? The Wii sold 100 million units, while the 360 and PS3 both sold 80 million. The Wii had games that sold in the 30 million copy range. Did they 'win'? How do we gauge it? Clearly, the hearts-and-minds of core gamers went to the PS3/360, but in terms of sales, it's not so clear. In terms of profitability for the companies, Nintendo clearly did much better (no giant quarterly losses until well into the economic downturn, no big hardware writeoffs until the Wii U). But in terms of games that 'gamers' wanted, the Wii was a total failure. In terms of sales for third party developers, the Wii was horrible. But we are long past the days of companies going down in flames like Sega did (though I admit MS gave it the old college try this year). This is due, in no small part, to Sony and Microsoft having deep pockets, diverse interests and secondary agendas tied to those interests which drive their console plans (see DVD adoption, BluRay adoption, living room integration, OS Media connectors, etc.).
The fact is that the most successful console of the last generation was....the Nintendo DS, which sold 153 million units in 4 years less than it took the PS2 to sell the same number.