NES: (this is the only retro game I own a sealed copy of, it is the game that truly sparked my love for Role Playing Games. My second JRPG, but the first I fell in love with)
Final Fantasty
SNES:
Final Fantasy 6
Genesis:
Phantasy Star 4
Dreamcast:
Grandia
N64:
Ocarina of Time
PSX: (It was not, and will never be "PSOne". It was ALWAYS PSX to those of us who were there)
But this brings TWO games to mind right away, one of which, Xenogears, doesn't get nearly enough love! (and is still my favourite JRPG of all time) I own both the American and Japanese versions.
Xenogears and FF7
PS2:
Dragon Quest 8
Obviously, there is certainly a throughline of JRPG's being my favourite games ever since I discovered FF. They are certainly still among my favourites, but there are only a few series im truly all in on, and I play a lot more action/action rpg's than I did back then.
Edit: Well, that didn't work, so I listed the game above the links.