TIA.
), who is also an Alteration user. With the Alteration mage resistance perks (and the Agent of Mara), you can reach a nice "natural" (aka, with no enchantments) 70% Resist Magic.
For straight warriors I prefer Atronach. You're not worried bout magicka regen, and I suppose you could go on for days about the benefits of the magical resistance of both it and the Lord stone, but I prefer the 50% chance of absorbing ALL of spell's damage.