I can't really decide. :P Probably a tie among V, VIII, and IX. V because it didn't leave Japan until it was kind of dated and ended up going up against the 3D Final Fantasies. VIII and IX because they were for PS1 and they weren't FF VII.
Final Fantasy I
Final Fantasy II
Final Fantasy III
Final Fantasy IV
Final Fantasy V
Final Fantasy VI
Final Fantasy VII
Final Fantasy VIII
Final Fantasy IX
Final Fantasy X
Final Fantasy XI
Final Fantasy XII
I can't really decide. :P Probably a tie among V, VIII, and IX. V because it didn't leave Japan until it was kind of dated and ended up going up against the 3D Final Fantasies. VIII and IX because they were for PS1 and they weren't FF VII.