The best barrows armour defence wise is either Guthans, Torags or Dharoks. But as most people do know having the set has some sort of special effect, I'll list them, and you make your choice:
Torags - A Small chance you will drain Run energy from another hit player, on a successful Hit.
Veracs - A small chance that you will hit straight from Protect from Melee Prayer.
Dharoks - the lower you hp, but more damage you will cause on your foes.
Guthans - A small chance on healing you on strike, around about half the damage you cause. guthans doesnt give the healing on you now n its the cheapest too
Karils - On successful attacks with Karil's crossbow against a player, there is a chance that it may temporarily lower that player's Agility level.
Ahrims - Successful Magic attacks have a chance of temporarily lowering the opponent's Strength level. This weapon is typically not used with the full set.
The choice is yours, choose wisely.
There is no "best" armor in runescape, but armor such as the "nex" armor (Torva, Virtus, & Pernx) are some of the more elite types. Nex armor is dropped by the monster Nex in the gwd.
Granite armor is the best armor to wear with 51 defence members.
Just like everything else in runescape, saradomin is the number 1 best armor in runescape since it is the most expensive. 4-5 mil
Full Rune.
The best ( but most expensive ) has to be armadyl.
gold armor is called gilded armor in runescape and is gained through treasure trails
Proselyte armour.
The best armor to wear in Runescape I would say is Bandos, mainly because a nice combination on Strength bonuses with Defense.
The best armor for free-players is Rune, God armor is the same the same thing, just painted with the colors of a God. For members, the best armor is Dragon, also the most expensive.
dragon arrows.like armor and weapons,dragon is the best besides special items.
if u mean by highest as in money i think its guilded armor but that's off the top of my head. If you mean by best then rune armor
You can't trim armor on RuneScape if someone tells you they can trim your armor don't give them your armor they are scammers