I don't think sega was a pushover. But that they were ahead of SNES until they lost focus. Which just shows that Sony coming more structured than Sega they would likely oversell N64. Still SNES was stronger, more well know, with more partners, and momentum from NES. They had much more advantages than they would against PS1.
Megadrive were ahead at first because they had a headstart, same as 360 was ahead of PS3 for most of the 7th gen cos it launched a year earlier.
I don't see how Sony would have any more of an advantage over a CD-based N64 than Sega had over the SNES; in both cases it'd be a matter of the challenger getting a head start and having good advertising, but Nintendo getting the combination of the biggest third and first party big guns and more capable hardware.Last edited by curl-6 - on 24 August 2019