ff1: beaten three times, I think (although I never beat it back on the NES cartridge as a kid, only later on emulator and on Origins)
ff2: played but never all the way through
ff3: played but never all the way through
ff4: beaten at least ten times
ff5: beaten at least six times
ff6: probably beaten this one twenty or more times
ff7: beaten five or six times
ff8: never played
ff9: beaten three or four times
ff10: never played
ff11: never played
ff12: never played
tactics: beaten three times
tactics advance: never played
crystal chronicles: never played
mystic quest: i think i beat it three times during the two days I rented it from Blockbuster.