3 things.

1: Bundles don't count in NPD.

2: Digital is counted for FFXV and all the others (except Bnet sales for Overwatch), but not Uncharted 4.

3: Based on Revenue

Based on that with Uncharted 4 doing 828k without digital or bundles first month, I would say it is safe to say FFXV>828k.

We already know Final Fantasy XV did 1.573m at retail only :p

The PS4 fell behind in the 2014 holiday season because MS cut the price of the Kinectless SKU (which was released in May that year) to $350, undercutting the PS4 by $50. That really helped boost the XBO's sales, though the effect fizzled out after the New Year. The XBO actually won April 2015 by a slim 10k margin because of big deals certain retailers had for it but not for the PS4. It also won Oct. 2015 because of Halo 5. But the PS4 totally dominated the holidays that year because it was once again brought to parity with the XBO. It wouldn't win again until this past July when they issued a clearance price to existing XBO SKUs ahead of the X1S's release. The X1S gave XBO sales a pretty solid boost, while Pro preorders were cannibalizing at least some of the PS4 sales and dampening the effects of the PS4 Slim (combined Sept.+Oct. sales were 661.8k for the XBO and 520.3k for the PS4, a difference of 141.5k; the Pro sold 242k in November).

Now that the Pro and Slim are both out, we've seen the PS4 retake the lead. However, there were plenty of holiday deals, which have a distorting effect. We'll have to see how things go over the next several months, assuming we keep getting numbers, but if Amazon is any indication the PS4 should retain the lead, and it may even grow its proportional lead, similar to how the XBO won the 2014 holiday season but immediately dropped back below the PS4 in 2015.

I doubt the 360's record-setting failure rate contributed much of anything to its sales. It was more cost-effective to pay the $100 to send an out-of-warranty 360 in for repairs than it was to pay $300+ for a brand new console. I honestly doubt that many people would actually go buy a brand new 360 just because their current one failed. I had my 360 fail twice, once in 2008 (or maybe early 2009) when it was still under warranty, and again in 2011, and the second time I just paid the $100. I haven't had any problems since.