I'll laugh when Sony is the only one in the market, charging whatever the fuck they want for their HW, then see everyone complain about it.
Yes Sony benefits from having some form of competition, everybody does. Without Xbox I'd imagine PSN would be either non-existent or trash, they'd also be able to lean back on 3rd party games and maybe be less incentivised to risk investment in their first party studios, so we wouldn't have them performing to the standards they are at now.
What MS have done in BC is great and should be something that PS and Nintendo are now focussing on more, if not for this generation then the next.
Unfortunately the main thing that matters is games, and at the moment there is no culture to what MS Games Studios are, they produce the odd decent game, but since the XB1 launch, they should have been laser focussed on making their production standards the best in class. People are getting tired are all talk and no action, the XS launch is proof of this, they need to start under promising and over delivering, kind of how they do with their controller releases.