Technically the only reason they are called classes is because thats how it was localized. In the Japanese Version they are just weapons and don't even have special names. they are just "Sword User" "Axe User" etc.
We should have never called them classes, none of this confusion or rage against the armoury system would have exsisted. I'd have also not locked any skills from cross equipping, as that also leads to people thinking there "Has" to be uniqueness between the weapons when the weapons were already unique.
Uh, Flim Flams were Daggers. They just had special pommels and guards.
And no, I didn't always use a GA on Warrior, a GK on Samurai, Or a Scyth on DRK.
WAR, Depending on Subjob
If Thief - Great Axe, or Great Sword depending on targets.
If Dancer - Dual wield Axes and swords, or Great Axe, Retribution + Organics was a great combo for me
If Samurai - Great Axe, Pole Arm, Great Sword, Bow
If Ranger- Accuracy Daggers + Bow, Outdamaged Rangers constantly.
Samurai, Depending on Subjob or target.
Thief - Polearms and Great Katanas
Dancer - Great Katanas, Daggers, Swords, Polearms.
Warrior - Great Katanas and Polearms
etc.
Dark Knight
Thief - Great Sword
Black Mage - Scyth
Warrior - Great Sword
Ninja/dnc - Dual Axes and or swords
Paladin
Dancer - Dual Short Swords
Dragoon - Polearm
Warrior - Polearm or Sword and Board, sometimes Great Sword.
I never went to a party with only one weapon, and was willing to change weapons out constantly to present the best WS choices possible. Hell with Samurai, I could litterally swap in and out of weapons and skill chain myself with multiple weapons.