Going to go out on a limb here and say it's Switch.
http://twinfinite.net/2017/11/switch-best-selling-black-friday/
Adobe Digital has analyzed “4,500 retail websites” in order to find out what the top five best-selling products were for Black Friday via online stores. The only video game item to enter the top five – at number one, no less – was the Nintendo Switch.
There is also the Business Insider article which notes Nintendo Switch was one of the best selling products.
http://www.businessinsider.com/nintendo-switch-popular-on-black-friday-2017-11
So I think this combined looks like Switch may be top. I will also add that Playstation had a bundle with Battlefront II and, from what I'm seeing, they aren't selling. Could hurt sales, but its hard to tell what impact it will have, if any.
Visit my site for more
Known as Smashchu in a former life
