Check out the million seller list for both Sony published games and Microsoft published games. You'll see a much higher % of titles and also very close to the actual number of home run games they both released and this is comparing 3 systems for Sony to 2 for Microsoft.
If one had to guess randomly without knowing what the game/studio was for a game published by these respective companies, chances are the Microsoft title would be more likely to sell 5M+.
In terms of being able to publish big hits it seems:
Nintendo >>> Microsoft >> Sony.
Pretty good for interlopers in the gaming business.
Tease.







