Ladies, back on topic. This is only about the SNES Final Fantasy Lineup. Not any of those PS2 ones that I really don't like. Now, let's talk the major differences between 1, 3 and 5's Job System. In 1 and 3, I don't think you could switch jobs in the heat of the moment, but in 5 you could make a wacky character by mixing all these different jobs into one job, and although you can onkly use 3 abilities with that Bare Job after you master a bunch of different ones, passives cross over, making him/her a lot more versatile.