I know the 360 had the boat:

I think the nextbox has very good chances with their currently strong position in US/UK and they gained a lot of consumer trust in the rest of EU/Pal regions aswell. During this gen not few people invested heavily into the online ecosystems, especially in XBL, and those will very likely pick up the next gen offering from that same manufacturer (like people with a lot of android or ios content are unlikely to switch to the other ecosystem).
Software will likely be graphically on the same level as the PS4's and Kinect 2 is a good wild card, as if it works as well and smoothly as the leapmotion, but for your whole body, this time around I'm sure that can entice a lot of people to the system.







