1- Breath of Fire 3-4 (I need a new game)
2-Persona - Persona 2 Inocent Sin - Eternal Punishment.
4- Wild Arms
5- Suikoden 1-2
Special mention to Koudelka, i really enjoy the story and music of that game.
Thats is my top 5, but objectively Suikoden 2 is the best PS1 Jrpg.