When are the "Big Three" going to stop competitng against each other and actually instead work with each other to help improve the quality of the market? Each producer has their specific strengths that they should eb working on to ensure a varried experience in gaming, yet instead all three seem content with offering the most multiplatform content imaginable and blurring the line instead of standing out from one another.
Nintendo: Always has excelled in Handhelds since the Gameboy. Various competition such as the wonderswan, NGP, and Game gear all came to compete but never outlasted it, and recently the Sony PSP and Vita, while good content did not survive against the 3DS, and now Switch. This is proof Nintendo has cornered the Handheld market.
Sony has always offered a wide amount and variety of content for their systems, and few exclusives. While constantly combating with Nintendo however Sony has always offered practical abilities to the average consumer dating back to the PS2, Primarily the use of a DVD player, later Streaming, Netflix, Internet capabilities, etc., Sony is the number one home video game console of the current gen through various advertisement and changes to their image and currently in lead of home console sales.
Xbox since the days of the Original has always offered the best hardware and graphic capability as well as procesing and technical aspects. Multiplatform releases are always superior on Xbox due to its similarity with PC., However, with 360 and The One, its support has died massively due to PC gaming being far more accessible and customizable. Instead Microsoft should focus attention on the Xbox project to pure PC support and streaming capabilities from a support device alongside Windows 10.
Each of the three has a very specific market they've cornered, and if each decided to work further in strengthening these markets instead of trying to compete and corner each other, we'd have a larger variety in games and playability.