With an Xbox 360, you have the Windows 8 integration as well as the SmartGlass app for Windows, Windows Phone, ios, or android. I tried it out the other day, not too shabby! You can control your Xbox with your phone, feels nicer than using the controller. The Kinect for me is WAY better than the Wii, and MUCH more active than the Wii. There is also Xbox exclusive games, which tick me off, such as Halo. That grinds my gears since Halo 1 and 2 were developed for the PC, and that was it. Nothing more from it.
The Dashboard of it looks nice, and fits with Windows 8 and Windows Phone. It completes an awesome ecosystem that just simply doesn't exist outside of it.
But then again, there is a new Xbox coming next November along with the Kinect 2, which will allow four players at once and possibly being able to use physical objects for interaction. Basically, the Wii U will be cool for a while, but then the Xbox will come and wear out that novelty. Better hardware in general.
Also, pricewise, it's not too expensive. And, you can have avatars! Love my little Xbox avatar! In the new Microsoft ecosystem, I can play an Xbox game for Windows Phone, carry that onto my Windows 8 PC, and then onto my Xbox if I so please and have all the achievements and points added from gaming on different devices. I can have stellar cross-platform connectivity, where each device was built for one another. I also can play music from Xbox Music on my Windows Phone in the car, continue listening to that playlist on a Windows 8 PC, and then continue it on my Xbox at home.
Pretty neat! But as usual, desktop PC gaming is still king. Nothing beats out a decent system graphically with a console. Some games were meant to be played on a PC, with graphical depth and immersiveness that slaps you in the face and captures you into the gameplay.