The armor sets in this game so much prettier than what DA2 and DAI gave us.
Alistair - Templar Armor for most of the game, Armor of Diligence, Juggernaut Plate; Duncan's Shield
Morrigan - Archon Robes; Oak Branch
Leliana - Wade's Drakeskin
Sten - the heaviest spare armor I've got lying around; Sten's Sword
Wynne - Vestments of the Seer
Oghren - Armor of the Legion when not playing as Dwarf Commoner; sometimes Dwarven Massive
Dog - I forgot...
Zevran - usually what he starts with, sometimes I replace it with heavier Dalish Armor.
Shale - Best crystals I've got.
As you can see, sometimes they get hand-me-downs, especially Sten and Oghren.
"The Warden"
Human Noble: Heavy Chainmail Armor, replaced by Heavy Plate Armor, silverite or volcanic aurum; Warden's Longsword (upgradeable); Kite Shield, Landsmeet Shield
I imagine most people who play warriors spend most of the game stuck with that heavy chainmail set that you find in Lothering, and eventually upgrade to the Armor of Diligence.
City Elf: Very similar to human noble, but Templar Armor as well; Hirol's Defense armor set; Vigilance longsword; Morrigan's Ring
Dwarf Commoner: Armor of the Legion; Faith's Edge, Dragonbone Cleaver
Dwarf Noble: Dwarven Massive Armor; Faith's Edge, Dragonbone Cleaver
Elf Mage: Vestments of the Seer; Lightning Rod, Heaven's Wrath