Something @Kozos said got me thinking:
The problem with the fighter is it is too generic. Think of all the roles we (sort of) want it to fill... and how other classes can do the same thing, if not better and/or sooner. We want a tactical fighter, a warlord fighter, a weapon master fighter, and so on. That is a lot of ground for one class to cover. Can it be done? Sure. But...
Fighters should be the best at ONE thing: COMBAT. You can cry out "What about exploration!? What about social!?" but that simply isn't what the class is designed for. Give them some goodies of course, but the main issue still remains: fighters really aren't the best at fighting.![]()
A counter point to that is that perhaps a fighter could assist in exploration and interpersonal skills based on his martial skill. Maybe placing a hand on their favoured weapon could provide a bonus to intimidation or a similar bonus could be granted towards those who might have seen you fight.
Generally speaking though I would like something more specific. What if the fighter had a "unique" social skill that they could train others in the art of combat perhaps granting those who have trained with him temporary hp, a superiority die or two and perhaps proficiencies.
Such a skill would be a noticeable social capital in any organised society.