If going by current generation consoles (still called next gen by most), I'd say Nintendo. It's just they're cheapest, gimmicky enough to appeal to a wider audience with the unusual controllers and they've released their console at a decent enough time to help with sales.
Next I'll say Sony. They arguably won the last round with the PS2. Most units sold out of PS2/XBOX/NGC, more games for the PS2 than either of it's rivals and most decent games on the other consoles came out on PC later anyway. Despite the superior ATi graphics of the Gamecube and the more powerful XBox, the PS2 was out first and garnered more fans before the competitors could properly establish themselves.
Lastly Microsoft. Both consoles seemed to be little more than average PCs with good graphic cards. And most good games came out on PC anyways. Halo, Fable, Morrowind, Oblivion...
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A definition by words is merely a means to deceive oneself. It's meaningless before the truth. What matters is how you perceive things. The slightest shift, then life and death no longer have any meaning.