There is one other fighter that you left out, probably because it can be so much more. However, there is only one way to get a character with 2-Handed, !X-Fight, and Berserk.

In addition to that, it's the only job that can let you equip every single shield, armor/jacket, helmet, and relic. Well, except for the Ribbon, but that doesn't count because it has it's own icon.

Not only that, but this job let's you keep and use the stat bonuses and passive abilities of every other job that you have mastered, including itself.

And, when used at the right time, it can do every single active job ability in the game.

On top of that, the boss that you have to beat for it will fork over 50 ABP while you just sit back and watch. I won't say any more about that fight though, because I don't want to spoil it.

Have you figured out what this job is yet? I hope so, because there's only one job that fits even the first advantage.

The almighty Mimic.