hmm this is easy since there have been relatively few.
i will forever love final fantasy 7 not because it was overly good but because it paved the way for RPG's in america as a commercial hit.

1. Shining force - because i loved the original feel and the ability to have your characters change and become stronger.
2. Legacy of Kain: Blood Omen - this game was incredibly well put together. the story itself was incredible. I even liked the dialouge. wonderful game.
3. Final Fantasy 4 - i think its 4 with kefka the bad guy. i think that was the best one of them all. palom and palam who were turned to stone to save the others. maybe its not 4 but all the first ones were the best. final fantasy is not a 36 hour game instead of its once 80 hour days on a 16 bit system.
5. Dungeons and dragons/Vampire the Masquerade - i list these as the worst not because they are bad but because at least for me its been impossible to find people to play with. the stories are great for both of them. and the systems of play work well. but since i'm not the most social butterfly running across some players is a mite difficult.

thats my list. there are of course maybe 20 more i'd list in total. since there were so few RPG's before final fantasy 7 i'd say everything before that at least rates a 7 on my scale to 10 because they were few and far between. but now its easier to pick and choose.