Several patches ago we changed the social bonus which brings every class into a group from a flat 5% per unique class into a mixture that depends on how common a class is and how wanted/useful a class in group leveling is. The less a class is played, the more social bonus it will have and the less wanted a class is for group leveling, the more social bonus it will have. There is also no more limitation to just one class per grp. We created 4 different tiers and grouped classes into these. Each tier does grant a different bonus.
Bonus per Tier:
Tier 1: 3%
Tier 2: 9%
Tier 3: 18%
Tier 4: 27%
Classes per Tier:
Tier 1
Wizard
Eldritch
Enchanter
Spiritmaster
Animist
Bonedancer
Necromancer
Tier 2
Cleric
Druid
Bard
Shaman
Healer
Skald
Minstrel
Hunter
Ranger
Shadowblade
Nightshade
Infiltrator
Runemaster
Mentalist
Cabalist
Tier 3
Friar
Warden
Sorcerer
Theurgist
Scout
Warrior
Thane
Berserker
Savage
Blademaster
Tier 4
Valewalker
Paladin
Mercenary
Champion
Armsman
Hero
Reaver
Bonus per Tier:
Tier 1: 3%
Tier 2: 9%
Tier 3: 18%
Tier 4: 27%
Classes per Tier:
Tier 1
Wizard
Eldritch
Enchanter
Spiritmaster
Animist
Bonedancer
Necromancer
Tier 2
Cleric
Druid
Bard
Shaman
Healer
Skald
Minstrel
Hunter
Ranger
Shadowblade
Nightshade
Infiltrator
Runemaster
Mentalist
Cabalist
Tier 3
Friar
Warden
Sorcerer
Theurgist
Scout
Warrior
Thane
Berserker
Savage
Blademaster
Tier 4
Valewalker
Paladin
Mercenary
Champion
Armsman
Hero
Reaver