I would like to say Sony is at top because of
Microsoft mistakes not their marketing or anything related to offering more than Microsoft. Capitalized from a business mistake to the fullest. Sony even surprise how they are selling that many systems.
thing is, Xbox would never beat Playstation in sales because of the strength of the PS Brand worldwide. Even if Mattrick didn't fukk up with the price, DRM shyt, mandatory kinect, you still had a basic hardware strength issue too. I do think the sales might be a few mill closer, but in no way was the XB1 going to beat the PS4 in sales worldwide. It just wasn't. An 8.5 million head start wasn't even enough last gen to stop the PS3 from overtaking the 360 in sales.
Xbox brand should be more than fine and established as the number 2 option going forward if they desire. They'll be fine.