For magicka: 5 Light / 1 medium / 1 heavy
For stamina: 7 medium
For healers: With full vMA/Masterstaff just 7 light is possible if you wear bis sets. Without take a heavy Molag Kena or any other heavy undaunted helm which brings some useful stat (magicka reg) to the table.
As a tank: 7 heavy to get the max out of the Armor skill line passives.
PvP: No clue, but I would prefer some heavy armor pieces on my magicka chars (Rattlecage).
Edited by Flameheart on December 14, 2017 1:26PM
Sometimes the prey turns and nips us... it's a small thing.
So let the snow flakes and unicorns dance alone until they melt or vanish from existence, we will finish up with those smart enough to stay in the glowing circle of love.