For me the FFVII series was best.I remember playing the first Final Fantasy VII for the PS1 a few years ago and it was beast.Then Crisis Core was released.I don't even remember how many hours I spent playing that game.After I was done with CC(never got to finish it,though I did reach the final baws),I started playing Final Fantasy VIII.It was good but it didn't have that spark that VII had.I also played X and VI,but they weren't that interesting so I decided to quit playing them after a few hours of gameplay.In conclusion the best Final Fantasy game I ever played is Final Fantasy VII.As for best JRPG,Persona series all the way.I don't even have to explain why,the name speaks for itself.