This is tough, because Nintendo is associated almost entirely with video games, Sony has shifted to video games, but still has electronics, and Microsoft's behemoths of Windows and Office make it hard to video games to matter to them. Apple has a massive gaming market on iPhones, but the brand isn't thought of in same way as dedicated or gaming first systems.
I give it to PlayStation due to consistency of calling their systems the same name for four generations. Nintendo is very strong, but I do think it is a challenge in branding when you change names. In the days of Wii dominance I knew many people buying it with no association with Nintendo. If the NES was the Nintendo 1 and we were at the Nintendo 7 now with the Switch I could see the name and company branding being the one most associated with video games.
