I would read the Armor section on the Conan Exiles Wiki, light armor gets 6 dodges before exhaustion, medium 5, heavy 4 regardless of max stamina as an example of good info on there. It goes more into detail about stamina regen penalties.
Especially when starting damage resistance might seem important, but dodging is the quickest way to get unstaggered and avoid hit 2-3-4.
Also it was mentioned that the armor scales with diminishing returns, heavy armor can get something like 73%, but armor also comes from the grit trait (200 max) and bulked plating mods can add 125. So even a base no thrall crafted light armor with 80 can get 405 armor which is close to 40%. With a crafting thrall can get you close to 50% dr. So then it’s 50% vs 73% dr and 6 dodges vs 4 dodges for light vs heavy.