Try on different gear and see their total stats and their differences. In short, an ingame CT-Profiles-like addon.
Pawn - World of Warcraft Addons - CurseForge
World of Warcraft: Burning Crusade Classic - Protection Paladin Tank pre-Raid BiS Gearing Guide
AbyssUI - World of Warcraft Addons - CurseForge
Overview - Team Equip Compare - Addons - Projects - WowAce
Pawn - World of Warcraft Addons - CurseForge
Overview - HudMap - Addons - Projects - WowAce
ElvUI Addon Guide - How to Install and Customize - Wowhead News
Pawn - World of Warcraft Addons - CurseForge
Zwacky UI : Graphical Compilations : World of Warcraft AddOns
World of Warcraft: Burning Crusade Classic - Protection Paladin Tank pre-Raid BiS/Tier 4 Gear Guide
World of Warcraft Addons - CurseForge
Overview - WoWEquip - Addons - Projects - WowAce
Bartender4 : Action Bar Mods : World of Warcraft AddOns
Pawn - World of Warcraft Addons - CurseForge
Routes : Map, Coords, Compasses : World of Warcraft AddOns
