If people are going to choose it should be based on exclusives. The X1 and PS4 both have comparable hardware this year and bluray is in both. Even thou I have both of them I like playstation more due to its hardware, exclusives and PS+.
Steambox on the other hand I'm actually extremely happy for because I know plenty of people on X1, 360,Ps3&4 that just wont touch a Pc for reasons like not knowing how to maintain one, build one, have had bad experiences, money issues or just not into pc gaming.
With the SB thou I'm hoping it will come to a good price and become like a standard system to purchase like a playstation, Nintendo or xbox.
It would open up people to actually getting into pc gaming and enjoying its fruits of pure awesomeness and maybe we will get more ports on pc, instead of watching everyone else share them.
As for the wii U, it is what it is. xD