Sony definitely lost a lot of money with the PS3 though you have to remember that they made money because of it in other segments e.g. by winning the format war against HD DVD. Also you could argue that lessons learned secured a huge success with the PS4. No doubt that PS3 was unprofitable all things considered.
Nintendo just keeps being unrivaled when it comes to making profits on lower selling hardware. Though you could argue that the profit seeking strategy (e.g. only a very few price cuts) prevents long time growth (e.g. growth in user base). If 3rd parties are to return there has to be a healthy sized user base including other groups than the one primarily buying Nintendo games only.
Microsoft's Xbox numbers are impossible to analyse due to Android royalties being lumped together with "Entertainment and Devices". It is estimated that Xbox made (still makes?) $2 billion in yearly losses. Microsoft has yet to debunk that estimate. I wonder why.
For the past few years, Microsoft reported the revenue and operating losses of Entertainment and Devices, which was the group that housed Xbox, Windows Phone, and Android royalty payments.
That group always seemed to be profitable, but Sherlund says it's largely because of the Android money.
Sherlund says that if you back out the Android profits, Microsoft is probably losing $2.5 billion on Skype, Xbox, and Windows Phone. Of that, $2 billion in losses are attributable to the Xbox platform.
