Very good point. It seems rather irrational to say Xbone is going to win a generation based on the fact that its predecessor has won only one generation. I think people are banking most on the fact that the 360 is a western console and consumers are patriots who will prefer a home console built in the west.
I don't think this is the case. Core gamers will buy whatever is best and most casuals don't care about the companies enough to make decisions based on such aspects. The 360 capitalised on all the mistakes that the PS3 made and gained a big head start. By the time Sony recovered, the 360 had already gained a large fanbase which kept growing due to brand name and the idea of "my friend has it so I have to get it".
I am interested to see what happens when all those variables involving Sony's major mistakes are taken out. If after that Xbone still wins then we can say that there is some kind of trend going on here. Otherwise it was just situational.
