Super NES. Maybe NES.
I think there was a larger library of my favorite games from the earlier system.
But the SNES had two good Final Fantasy games, a crapload of fun shooters, and some nice classics like Super Metroid and Actraiser.
Then again, the NES had a cubic butt-ton of classics not the least of which was all 4 Dragon Warrior games.
I dont think the US ever saw any Super Dragon Warrior or Dragon Quest titles.
Of course, we also only saw half of the Final Fantasy games too. I had to get an emulator to discover the others.
Crap, I cant decide.
The first Playstation was nice only because I got it for FF7. I sold it long before number 8 came out and played it much later in Windows.
EDIT: OK the question was "which holds the most amazing memories for you" and that would have to be the NES.
Not that the Super Nintendo was bad, but the original just warms my heart a little bit more.
Because:
Faxanadu, Crystalis, The Legend of Zelda, Super Mario Bros. 1&3, Dragon Warrior, Final Fantasy, COMMANDO, Strider, Metroid, Wizards & Warriors, Goonies II, TMNT, Duck Tails, Mega Man, and at least another 20 reasons.
I miss the old days when the systems were weak and designers had to put effort into actual gameplay.