Most "heavy" looking armor set?
Plated Armour is quite beefy looking.
Time is a river.
The door is ajar.
I’d say the rampart one is the one closest to what you describe IMHO:
The SE one is a good one there, but personally I don’t like the chest and shoulders. Some other sets that look like a walking fortress would be these, IMHO.
http://www.argos-soft.net/GW2/ArmorGallery/index.php?color=10&sex=0&race=3&w=3&skinID=nightmarei&lang=en (Dark set)
http://www.argos-soft.net/GW2/ArmorGallery/index.php?color=10&sex=0&race=3&w=3&skinID=armadai&lang=en (Plated set)
http://www.argos-soft.net/GW2/ArmorGallery/index.php?color=10&sex=0&race=3&w=3&skinID=wingwi&lang=en (Caduceus Manor heavy set)
NOTE: Links are from Argos’s website, sometimes if you click on them it’ll send you to the full gallery, if it happens, you have to copy and paste the link to go to the actual armor linked.
wrapped up in some crazy ritualist hoo-ha from Cantha.
A real grab bag of ‘you can’t hurt me. They’re called Guardians.
Plated armor.
SE heavy. You’ll look literally like a walking fortress, ramparts and all.