What do you mean by come close? Do you mean total holidy sales only. That is unlikely but possible.
Do you mean all lifetime sales? The Xbox One would have to outsell the PS4 by about 400k every week for the remainder of the year. Thats 400k ON TOP of whatever Sony sales. If Sony sales 300k on week, Microsoft has to sell 700k that same week. If Sony sales 4 million this holiday, Microsoft must sell 9.4 million units. I highly doubt that they even have the ability to make that many consoles.

If the Xbox one can consistently beat the PS4 in the UK from now on, it could be possible.

A single week of bundles and discount are not impressive, albeit a good. Besides, how will MS do better advertisement if Fifa 15 on the PS4 sold over 100k more?

Argos is a large retailer in the UK, but it isn't a walk around and browse store. Its like Walmart with an ordering book and a giant warehouse. Quite popular for discount good quality items (like walmart)

I'm not quite sure you've got the concept of "facts" down.

us, uk and australia, yes
brazil and china xbox one will be ahead

rest of the world: no

*fixed

I find it funny that the OP says the Xbone is 'beating the PS4 in the UK' when it is one week and likely only by a fraction!!

I think both consoles will perform very well this holiday season, as will the Wii U, but the PS4 will be the top-dog for holiday sales... Possibly being outdone by the 3DS however as the sales for handhelds always go insane in the holidays (apart for the Vita *insert disappointed face here*)

We know that ps4 is 50 % better than xbox ...i can sleep with that .

Where you getting 5k from.

Edit: Ignore... totally forgot we are a week behind... Knew I was overlooking something lol