So I am going to be a pure warrior in Skyrim. I will only use a one hander and a shield. My perks so far are: Block, One Handed, Heavy Armor, Smithing, and Archery. What would be a good 6th perk?

Those aren't perks. And why do you have to have a 6th? I bet you'll use more than that anyway.

Restoration's always handy for warriors, but honestly? Enchanting all the way. Improve your weapons on two levels. There's even a perk under Smithing to do exactly that.

this ^
my first character gonna be a deul wielder that focuses on one handed smithing enchanting and alchemy for maximum dmg output :starwars:

Depends on which warrior you makeing! You could be a Barbarian,Paladin Ect.