Each has its strength. PS4 is definitely powerful and all the non-exclusives will go there; the xbox one's system actually impressed me (I detest Windows 8 yet I like the Win8-flavored Xbox os) and its controller is awesome; and the Wii U, well... After ZombiU nothing really has shown what the bad idea of a controller can be good for but anyway, even if it's gaining dust several weeks of the year, two words suffice for me: Mario and Zelda. HD. Enough said.
Pfft if your looking for something to play buy Monster Hunter 3 Ultimate (if you couldn't tell I am a fan). If you get past the 50 hour or so learning curve (not entirely exaggerating on this either) then you are down for another 250 hours of fun. I spent 300 hours in that game without even having to learn it, and there were still 1 or 2 monsters I did not get around to killing. I could have easily spent another 100-200 hours if I wanted to complete all the online quests. The game is huge and Its basically a game were all you do is fight ridiculous boss battles. The online makes the game so much easier for newcomers as well.
I just wish capcom was not full of dumb people, and would import the 4th one already. It is just getting tiring not receiving these game by now. I swear ever since the early 2000's they decided they had a good run, and decided to screw everyone over.