I really don't want just the material of the armour.. as in "steel" or "ebony".
I know it gets overly complicated however the P&P gamer in me likes it when material, type, style and make are all combined.
So I'd like elven full plate, or orcish cold steel chainmail, or even glass dunmer splint.
No armour style should just be one type, there should be light orchish and heavy elven as well.
Types generally that nords would use should come first, then those nations that they have close contact to.
Followed by rarer loot and adventurers from far off pieces of armour.