Well for a more specific reference take into account this setup.
Balthier as Sky Pirate with:
Jump skill
Reflexes
Attack Up
Teleport

Javelin II
Echutcheon II
Thief's Cap
Lordly Robe
Brigands Gloves

Now with this setup my Balthier has a Speed of 18 and is Hasted, an attack of 18 with attack up, 99% evade on almost all attacks and Wall, and can move almost anywhere on the battlefield fast. Against an enemy with no added damage modifiers Barrage will do 360 damage per hit, which will kill any enemy save some bosses. His Jump will do 810 damage and at his speed he can jump and land 1-2 turns quite often even against other hasted opponents(I have done this against my friends Orlandu who is quite formiddable). You be the judge.