X1 will easily win through 3rd party support alone. Just wait until Destiny, GTA5 and FarCry 4 arrive, and hundreds more to come including GTA 6, the next Elder Scrolls, The Witcher, Final Fantasy, Kingdom Hearts and all big AAA IPs the industry has to offer. The Wii-U is a niche system for small children only, as soon as kids get out of kindergarden age, PS4 and X1 are the only system to play with, unfortunately.