I've mainly played these eithe rvia emulation or GBA ports.. but I'm fond of Super Mario RPG, Super Mario World 1+2, Zelda: A Link to the Past, Super Metroid, Final Fantasy VI and Earthbound.
terranigma has to be my favorite. then soulblazer(another enix game that rocks). of course chrono trigger, final fantasy 2 and 3 rocked. Super Mario RPG was good, and i'll end with sword of mana and actraiser.