nes:
zelda 1 and 2

snes:
breath of fire 1 and 2
chrono trigger
secret of mana
lufia
final fantasy 1 till 6

psx:
final fantasy 7 and 8
final fantasy tactics
breath of fire 3 and 4
star ocean 2
valkyrie profile
chrono cross
brigandine
suikoden, all series
tales of destiny and phantasia

probably forgot alot of others, but these are the ones i played alot back in the good old days.
also the best times were on snes, where u were stuck alot and did alot of searching and talking to everyone to advance in the game, and when the internet slowly came it fucked up most rpg's.