The ones I target:
Blades Armor- great protection early game and it's found as a complete set for free, along with a bunch of Blades swords
Ebony Mail- Daedric artifact, hated by many archers due to the power that activates during a crouch, but I'm used to it. You gotta get your hands dirty to get it.
Stalhrim Light- I just like the way it looks and it offers excellent protection, though it's not easily attained and you need the Dragonborn dlc. Accepts frost enchantments well.
Ahzidal's Genius Armor- Excellent multi-purpose armor for the Heavy Armor Mage (one of my personal favorite builds) with really cool powers. A must-have for the serious enchanter. Dragonborn dlc required.
Once I've perked to the point that I can make any armor viable, I improve a set of fur armor w/ forsworn gauntlets and boots for hunting/exploring and I run the Ebony Mail with Carved Nordic gauntlets and boots for dungeon diving/world saving... or in the case of my current build, world ending.
Bottom line, every armor type can be the absolute best with crafting. Early game you are kinda stuck with what you find, but if you are interested in crafting, you can pick a type based on looks only and improve it to the point that it protects as well as the best daedric armor.