I have played FF1, FF1 Advance, FF2, FF2 Advance, FF3 (ds version), FF4, FF4 Advance, FF5, FF6, FF7, FF8, FF9, FF10, FF12, FF Crystal Chronicles, FF Mystic quest and FF Tactics (That gameboy version)

I think FF 3 and FF 5 are awesome becouse they have the job system.