Going by what I've read on here, the PS3>Wii because it has better games, and the PS4>WiiU because it has better (potential) sales. (I'm not here to argue this, of course the PS4 will outsell the WiiU.)
But if you compare the two right now, in terms of sales Wii>PS3 and in terms of games WiiU>PS4.
So when you say PS3>Wii because of games, shouldn't you also have to say WiiU>PS4 because of games?
And when you say Wii>PS3 because of sales, shouldn't you also have to say PS4>WiiU because of sales?
Stop flopping back and forth between one category or the other to make your favorite company seem the best, stick to one or the other.