If we count third party, then PS4 and 3DS look the more promising. If we count First and Second Parties only, then Wii U is on top.
But hey, there's a lot of games in every platform (minus Vita) to look forward to! Scalebound (the little we know) could end up being very VERY impressive. So as Persona 5 and Final Fantasy XV. Xenoblade Chronicles X owns everything though.







