Most efficient way to level the Armor skill lines?

Kammakazi

I'm grinding a new character and was wondering which pieces should be Heavy, Medium & Light.

AzuraKin

pick whatever role, magicka dps, stam dps that you gonna use while lvling, and do 5 of that armor plus 1 1 to lvl all 3 armors, and 5 2 if you only wanna lvl 2 armor lines.

Espica

For tank I recommend 5 heavy, 2 light. Then when you unlock all the tiers of the first 3 light armor passives go 5 heavy 2 medium.