+Latest financials put 3DS at 67 million shipped, meaning its likely well past 65 million sold to consumers. Earlier in January, 65 million 3DS shipped and around 63.5 million sold per VGC. Meanwhile, VGC estimates put around 2 million Xbox One sold this calendar year. So the two are likely pretty close at a global level of sales
+Latest July NPD put the 3DS ahead of Xbox One.
+XB1X of course arrives later this year, but its uncertain if it will significantly stimulate overall XB1 sales much higher than if XB1X didn't exist. There's a possiblity of XB1X being a niche product - whereas the 3DS has proven in the past to sell great during holidays, especially when offered at a steep discount and with and a new Pokemon game.
+Opinion: Going into holiday 2017 3DS 1st party > Xbox One 1st party. Both in sales and quality. Just a trend that I think tilts in 3DS's favor for the rest of the year for hardware sales.
+XB1 has lost price advantage it once had to the PS4 - meaning the major 3rd party releases that would otherwise push X1 hardware now favor PS4's overall advantage even more
I predict NX launches in 2017 - not 2016