More ways to show Skill and Technical Ability (Separating yourself from the average player):
Hunters: Had Ranged dead-zones, Rhok'delar Epic Quest chain, Kiting, Mana Management, Hit Caps, Spell Power Abilities, Melee capabilities, Arrows
Rogues: Abilities had Positioning Requirements, Combo Points, Reagents needed for Abilities, Poison Quests/Brewing, Hit Caps, Ranged capabilities
Mages: Rolling Ignites, Kiting, Spell Penetration caps, Hit caps, Reagents needed for Abilities, Shatter Passive in all Specs
Warriors: Stance-dancing, Weapon/Armor requirements for Abilities, Ability Quests, Hit Caps, Quel'Serrar Epic Quest Chain, Threat Generation
Paladins: Spell down-ranking, Mana Management, Hit Caps, Judgments, Reagents needed for Abilities, Quel'Serrar Epic Quest Chain, Threat Generation
Priests: Spell down-ranking, Mana Management, Hit Caps, Reagents needed for Abilities, Spell Penetration Caps, Benediction Epic Quest Chain
Warlocks: Reagents needed for Abilities, Hit Caps, Spell Penetration Caps
Shamans: Spell down-ranking, Mana Management, Hit Caps, Reagents needed for Abilities
Druids: Spell down-ranking, Mana Management, Hit Caps, Reagents needed for Abilities