TBeholder
Explorer
In other words, many things matter. Thus there are niches. Adaptation is everything. Armor co-evolves with weapons and tactics. All three have enough of external dependencies to ensure the balance doesn’t stay still indefinitely.he talked about how plate was suitable when you are going direct into battle, like a duel, but for day to day adventuring "full plate harness would really interfere with my ability to do travelling and day to day adventuring. So full plate harness might be great if you have got servants, at least two horses and a baggage train "
Armor can reduce mobility and endurance, but those are important more or less depending on what the wearer is supposed to do. Heavy cavalry pretty much sits still, sure. Other warriors must move more. For helmets, there’s also effect on the senses.
Reducing everything to 2 variables and therefore optimization to "the best you can afford" loses all the finer points.