I've played significant amounts of all but FFII and FFX-2 (and XI). That being said, I've only beaten: FFI, FFVI, FFVII, FFT, FFXII. Like Rantz, I'm often bad at actually finishing games. Especially with longer games, if I'm distracted for a week or so and stop playing, I have a lot of trouble getting back into it. I beat FFXII nearly a year after I started playing it for that reason.