With Hood:
http://i126.photobucket.com/albums/p117/arkanSTFU/koveras2.png
With Yngol Helm:
http://i126.photobucket.com/albums/p117/arkanSTFU/koveras1.png
Hood gives me more utility with +40 magicka, but Yngol's helmet looks pretty damn good (though I feel a bit like Loki). Yngol's Helm gives me an additional 30% frost resistance (already a Nord, so it's not a huge deal). Yngol's helmet also finishes off the heavy armor set if I take those perks.
The character is a sorcerer who wears heavy armor, obviously.
It's too bad that Morokei is light armor
