Sorry for the delay, but I've finally run a parametric analysis using the results from the Prediction League thread. The Switch number was announced by Nintendo, and Xbox One has a very constrained ambit, so the calculation for it should be solid. Only PS4 has a range of possibilities. Here are the results for April NPD:
SWI: 280k
PS4: 201k - 229k
XB1: 127k
It's typically best to choose the center of the range as an estimated value, unless there are known skewing factors. There is one here, which is the sales decay curve of previous-gen hardware (360, DS, PS3, PSV, WiiU). This lessening would slightly boost PS4 numbers. However, the effect is likely minor, so I'd suggest dismissing it. The neutral estimate for PS4, then, would be 215k.
I'd guess XB1 is ~5% down and PS4 up 5%.
Note that, due to more detailed analysis of confounding factors, I've revised my February estimates for both PS4 and Xbox One slightly downward, to 396k and 226k respectively. Using those new estimates as well as April's above, we get the following:
Code:
April YoY YTD YoY
PS4 +23.0% +8.0%
XB1 -25.3% -5.3%
It's always been a terrible term. Wish the industry could come up with a better way to reference this type of thing. Or make it go away lol.
I think it's still a germane categorization, though I prefer "hard exclusive" and "soft exclusive". The former means the game is available on no other platform; the significance of that is obvious. The latter means it's unavailable on directly competing platforms, i.e. the same generation/tier, and targeting the same market segment. This is still a meaningful factor for skewing sales volume away from particular platforms, even if the destination is multiple.
For example, a PSV/PS4 release in Japan is soft exclusive to PS4, since it disadvantages Xbox One (none of the desirability of the game attaches to that platform). However, unlike with a hard exclusive the consumer appeal of the title can't be simply assigned to PS4, because some portion of it will go to Vita--maybe even the majority, though this is becoming less common.