Of course, this question of power is stupid...
DS, Wii, 3DS, less powerful what rivals systems and we know the results !
Most important is the game and the creativity. And in this way, Nintendo is always the better (after, you like or not, it's an other question).
I saw the PS4+Vita could make the same result Wii U ? Ok, but how much to buy these two systems ? 250 (or 300) euros + 600 euros (perhaps more) ? Thr Wii U will be probably avalaible for 300 euros or a little bit more ! And I don't speak of the Games cost...
I think Nintendo is really in good position with this HD System...
Love Video Games : http://www.lightningamer.com