Each of the big three's greatest contribution to gaming, and why

[Leynos]

IcaroRibeiro said:

For Sony imo, it's the Dual analog

It became the standardized gaming controls and inputs for most of console games. It's still the best control scheme for consoles, that's why almost 30 years later they changed very few things about it and most third party developers just use them

After using the sticks for 3D controls I just never wanted to comeback for using buttons ever again

Sony popularized it but they were not the first.  That said I am glad it became standard.