Differences between WAR and DRK?

[Undeadfire]

DRK doesn't get its real mitigation until lv 70, meanwhile WAR gets its real mitigation in its in lv 50.

DRK is a slog in content up until then. Its not AS bad in those levels, but 50/60 are the weakest the job will feel due to how much of nothing you get in those levels. Remember that Reprisal and Arms Length are also mitigation and take your time. You're not going to get much help until lv 56 with Abyssal Drain, which honestly isn't a lot.

WAR has a much easier time, you can ride the same mits as DRK, as well as Thrill until you get Raw Intuition which can basically be one button clears of Dungeons.

I mean one significant difference, Drk has far more stronger AOEs and actually tears below 60 content apart starting 30-40, it's not even funny. War/Pld/Gnb don't come close.