Could Xbox have realistically won any of their generations? Why/why not?

[Norion]

I missed the part about competition remaining the same initially so with that in mind I don't think they could've won any since they obviously couldn't have won gen 6, 8 or 9 and the PS3 post Slim was strong enough that beating the Wii was a really big ask even if there was no RRoD. Now if they didn't badly screw up with the Xbox One and instead invested heavily into first party studios and went hard on the acquisitions sooner then there's a world where they could've won a future generation if they abandoned business sense and made everything exclusive, including no longer releasing on PC since Sony would've had no shot at being able to compete long term with Microsoft throwing their full weight behind Xbox. This would also require Nintendo faltering though since the Switch brand is currently too strong for even this supercharged hypothetical Xbox brand to beat.