Just for the sake of discussion,lets say that the armors and weapons made available to us had an extra "mod" that went something like this:
Leather and Studded Armor(full suit): +1 to +3 dodge against slow weapons. Two-handers,polearms and x-bows. Nil dodge bonus against moderate/fast weapons that have a base swing speed of 3s and faster. Nil damage reduction against all damage from all weapons.
Ringmail and Chainmail Armor(full suit): Nil dodge against all weapons. Damage reduction 10%-15% above the normal "all 70's" against all weapons.
Plate Armor(full suit): -1 to -3 dodge against all weapons. Damage reduction 20%-25% above "all 70's".
Shields: Buckler-Effective against daggers,all cleavers,skinning knives,bows,short bows.(+1 parry/dodge)
Weak against all two-handers and all other bows.(-1 parry/dodge)
No damage reduction.
Kite/Wooden/Metal Round/Bronze Shields- Effective against all one-handed sword weapons. Also effective against wooden clubs and smith hammers.(+1 to parry/dodge)
Weak against all x-bows and the Yumi.(-1 to parry/dodge)
Damage Reduction: 5-7%
Order/Chaos/Heater Shields- Effective against all bows,polearms,two-handed weapons,and all mace weapons.(+1 to parry/dodge)
Weak against daggers,cleavers and all fast swing speed weapons that are 2.75 and faster.(-1 to parry/dodge)
Damage reduction: 10-12%