If salvager armor is barb armor then barb. The atttack boost is great and the zora armor is way more situational. Also you can use the xenoblade armor for the same effects as the zora one.
I think that 5-shot bows can appear from blue and better lynels (at least from personal experience), and there is a chance to get them similar to how there is a chance to get weapons with higher durability or damage (and i think that you can get those enhanced effects more easily after beating...