I would have to say that Final Fantasy X was the easiest simply because of its simple Turn-based system and the ability to switch characters if they need it (I don't know if you can do this with any other Final Fantasy's because I haven't played that many)and its sphere grid system, find the spell you want then Level up and get it after beating the game with all of the spells I liked, I still had so many spheres left. And I would have to say that Final Fantasy VII was hard. I had trouble picking good Materia to equip my party as the good weapons had only a few slots and the weapons that had more slots, were considerably weaker. And the active time battle I liked

BTW, SephirothChick, I love your picture! It's so cool

(Jee I post long replies...)