I'm lucky in that even though I don't own an XBOX this generation, the vast majority of good games for it are also on the PC. And unlike some, I have no issues buying from and playing games from the Windows 10 store. I mean, I only have Recore and Killer Instinct from it at the moment, but I will not hesitate to buy something from it if I have to.

Sunset Overdrive, though. Man, I wish that game came to the PC. I'm not buying a system just for that game, though. I'd also like to see Halo Master Chief Collection come to PC as well. I would never buy it for the XBOX though since I don't do FPS's with controllers. Only mice.

I don't have an Ouya, but there's no title I want on it. Outside of that, I have a PS4, Switch, XBO, 3DS, Vita, and a PC. So I pretty much miss nothing.

I own all hardware. But basically I'm on Nintendo/Sony side.

So

CyberPunk 2077 (PC)

Gears of War 5 (PC )

XBox - Cuphead, Ori and the Blind Forest
PS4 - LittleBigPlanet 3

If you have a bank account capable of keeping you afloat despite buying every system out there then yeah I guess it would be nice.

Switch - Splatoon2.

I happen to own all the hardware of this gen, but I'm still finding rather few games to be hyped about...

Switch: zelda, pokemon and fire emblem.

Xbox: nothing now, but a good Fable perhaps. Old times of 360 are long gone, when bioshock and mass effect used to be exclusives...

None, honestly. Own a PS4 and PC. gears of war 5 would be cool but I could just play it on PC is I really wanted.

I own all the systems so no worries over here