Switch is absolutely on fire in the UK, there's 4 SKUs in the amazon top 100, including at #1, yet there's not a single PS4 or XB1 SKU to be seen. For the month on amazon, Switch is at #12, #19, #41, #47, #57 and #88. Meanwhile there's a PS4 at #65 and XB1 is just sneaking in at #100. Also to add that Smash is #9 for the month and was comfortably sitting at #1 on the daily charts before all the BF deals appeared, its going to be a good launch here.
Amazon is the most significant so far, because GAME haven't started pushing many consoles with deals yet. having said that, the only deals GAME has pushed are Switch deals, so I'm sure it'll be the same there too. If this is any reflection on the overall market then Switch is dominating the holiday season here. You'd kind of expect that though.