I wonder if this is adressed somewhere, but there seems to be a noticeable disparity in power even inside a rank of armors.
In bronze, Phoenix, Andromeda, Dragon and Hydra, seems straight up better than other bronze armor, as they give their users special attacks and abilities with no dowsize compared to other bronze armors.
The same Goes with silver Perseus and Gold Libra armor.
It is stated anywhere in the original work or in the spinoffs?
Like maybe it is stated that armors tend to empower certain techniques (And that is the reason different armor users use similar techniques)?