I know how Blizzard always likes to emphasize that shoulders are "the most recongnizable" part of an armor set, but I'd like to point out Neverwinter's armor system and how good it looks even at low levels, and how it keeps the medieval vibe that WoW so desperately needs to recapture.
Random female NPC, could easily be a Tier in WoW, reminds me of the Warcraft 3 intro cinematic human male armor. Classic Warcraft style;
My cleric companion(in mail and cloth) and my Guardian Fighter (only level 28/60), both could easily be dungeon sets.
Notice how I don't even have shoulder pads yet, and the armor looks amazing