People argue computers are best, but you have to think about it like the average person.
For a PC, you're going to need up to date hardware to run certain games, and even then some games won't be able to be run because you could be lacking on the GFX side.
For console all you have to do is own the console and buy a game and then boom the shit works.
I think Xbox tweeted that just for shits and giggles though. Xbox players will continue to play Xbox and PS players will continue to play PS.