PS4 + Wii U
Only reason for Wii U: nintendo exclusives (Mario Jump&Runs, Donkey Kong, Zelda, Bayonetta 2... perhaps X)
PS4 has several reasons:
- Sony exclusves (last generation they had the most exclusives I liked)
- PS+ games & discounts (no additional costs, I already have PS+ for Vita & PS3)
- Cross-Buy and Cross-Save for many Indie games
- Remote Play (access to the PS4 from anywhere in the house, even worldwide where the Vita can use a WLAN with internet)
- best console version of multiplatform games
- I got it for a great price, no reason to wait years for a price cut
Eventually a XBO will follow for Xbox exclusives, but that can wait. The 360 had the fewest exclusives I wanted in 7th generation, and half of the Xbox exclusives will end on PC anyway.
