I really like the Tolmekian knights from "Nausicaä of the Valley of the Wind".
Thier armor is not remarcable necessarily but the offensive equipment and tactics stand out to me.
They use emplaced machine guns, assault rifles and tanks (they're deploy by aircraft lol) but they also fight in formation with swords and shields (still supported by firepower) and carry axes.
Ghibli's (or Hayao Miyazaki's, in this case) grounded approach to fighting even when dealing with pure fantasy is a trait, one that I will always appreciate.