The problem with talking class fantasy is your idea of a class fantasy can vary from someone else’s depending on which version of a job’s fantasy you’re looking at.
Let’s take DRK, it’s traditionally a dps that sacrifices HP to deal damage, usually working as a glass cannon dealing massive damage in exchange for being easily killed. So in that respect you’d think DRK should be the highest dps. But you could also make an argument for DRK being a job that mirrors PLD being a utility tank that utilises dark magic instead of light magic, focusing on drains, DoTs and enfeebling spells. This version of a DRK would probably be low dps like PLD due to high utility.
WAR you can look at as the aggressive tank who focuses purely on damage at the cost of defence, or as the tank that focuses on counter attacks, or a tank that strikes a balance between offence and defence. It has been all these things in the past and where you’d place it in damage is going to depend on which of those fantasies you ascribe to it.
GNB isn’t really a job with an established fantasy, being based on squall from ff8 who could do anything depending on how you built him. But if we look exclusively at the weapon, a sword that deals extra damage with accurate trigger pulls, it sounds like a dps to me so I’d place it high up there.
PLD is the only one that is pretty much fighting for bottom in dps, it is the invincible wall that protects the party, but even PLD can be argued to have versions of it appearing as a dps, such as a holy knight that uses light based attacks to deal high damage.
Personally I’d argue it should be DRK > GNB > WAR > PLD. DRK being the high risk, high reward tank, GNB being more well rounded but still having that focus on dps, WAR being the middle ground having an even split between utility and damage and PLD being the utility tank that protects the party but doesn’t bring as much damage.