Xbox one: Better exclusives on 2014, more better exclusives on 2015, shares the 95% of Ps4 games. It only has like a 15% less of performance in multiplatforms, Is cheaper.
WiiU: Best exclusives of the generation.
Good job in trying to make your opinion as fact but It can also be spin in a different way you know, here is how I see it.
Wii U: few exclusives worth playing, no third party support = poor to average overall library + too expensive for what it has = it deserved the sales it has.
PS4: few exclusives worth buying, excellent third party support (which are the real selling point between the masses)= better overall library than Wii U.
As much as you want to think that third parties doesn't count, people look at the overall console library which by looking at the multiplatform sales, ps4 is the place to play those games. That maybe you don't like third parties games or see them as bad games, it doesn't matter, what really matter is what the masses want.
xbox: has better games overall but nobody ask them to try to pull the DRM fiasco that nobody asked for. Now people got afraid that they might do it again.
Criticize playstation all you want but at least in the console space, they have deliver in every generation. Even with the ps vita they at least tried but the sales of the games were poorly. it won't happen with ps4. And again the most important thing is the overall library which include both first parties + third parties.
Wii U might have better exclusives than ps4 but overall which is what really matter, ps4 > Wii U.