Skyrim Mo'fo'kerz

Eww.
You guys sound like you're playing on average difficulty settings.

Damage reduction is capped at 80% which is around 567 armor and obviously 80% magic resistance.
Daedric set is mehmo on Master difficulty unless you get magic resistance enchantments or have the Lord Stone + Shield of Ygammor.

The idea of Master Difficulty is to cap magic resistance since melee you could easily juke with shield staggers and siphon swords.
-Stamina & Health is main-go (Spells are forever inferior to Bow & Melee)
-I roll with light armor just for the stamina regen w/ siphon swords to constantly put all my enemies in shield stagger'd then siphon to keep my reserves up.
-Spam Kill Mark for lulzy.
-Sneak Bonuses everywhere hence muting boots w/ sneak perks aka 6x melee damage/3x Bow and constantly sneak harass. Or rape everything with 12x daggers.

You can drop Elder Dragons on Master like nothing with dat bossass DPS or logically defying shield bash.