The week of the 17th ended yesterday. Its from Sunday to Saturday. A week

to me a week is mon - sunday so it would include the 7th day. you sure about this? 

...what chart are you looking at? lol and it actually is falling while X1 is rising.

Eh, I don't think it'll work that way. Why?

(1)- Nintendo's big move is apparently SSBU. To be fair, it's a great GREAT exclusive title, but I do think if possible it could have been a game changer at $199. That darned tablet is probably still making that price point impossible to achieve, so it's good that they're at least enjoying some solid success with the release week. But I foresee them falling rather precipitously down the charts from these lofty heights. I do think SSBU being supremely awesome does make it likely that at least the baseline will be buffed a bit moving forward.

(2)- XB1 has not a lot left promotion-wise to buff it. As of right now, $349 bundles are getting beat  by $399 bare PS4s, which is pretty deadly when you think about it. I initially was pretty solidly on board with an XB1 November win, but now I'm sort of doubting it can do it, and December looks hopeless as can be. My new theory is that a significant number of early November X1 sales were just moved forward from BF+.