There all a bit samey IMO ( until FFXII )
But the best idea was Materia....
Final Fantasy I
Final Fantasy II
Final Fantasy III
Final Fantasy IV
Final Fantasy V
Final Fantasy VI
Final Fantasy VII (Materia)
Final Fantasy VIII (Junction)
Final Fantasy IX
Final Fantasy X (Sphere Grid)
Final Fantasy X-2 (Dress Sphere)
Final Fantasy XI
Final Fantasy Tactics
There all a bit samey IMO ( until FFXII )
But the best idea was Materia....