What is considered the best combination for this generation?

[RazorDragon]

Wii U + PC. Nintendo exclusives, Starcraft II Legacy of the Void > PS4/XB1 exclusives, also, better versions of multiplatform games thanks to PC. XB1 also has some nice exclusives and upcoming games, but PC has the better library, otherwise my choice would be Wii U + XB1.