H4run
Deity
The two consoles were released two years apart so I don't want to pick them based just on their technical specifications; the really important thing to me is ultimately the games library, and I would agree that Nintendo had the better of the two. Sega had some great titles, but they also had a lot more mediocre games and some big clunkers compared to Nintendo.
I never got into the PlayStation. Everything seemed like a step down looking at it from my perspective at the time.
Snes is legendary. But, if you after the game library like you have said, you missed a lot if you don't play PS 1. There are titles like Saga Frontier, Xenogears, Legend of Mana, Breath of Fire 3, and countless of others that you cannot really find the equivalent outside of PS1.