The team:

Zorgob - Minotaur Fighter
Hissy Fytt - Lizardman Fighter
Loonalot - Human Rogue
Mandibles McLongneck - Insectoid Mage

Starting a second playthrough on hard difficulty again with this setup:

Front Left: Human Fighter, Swords and later Heavy Armor Proficiency
Front Right: Minotaur Mage, Ice up to Frostbolt for stuns then Poison for resists and extra Vitality. Max Vitality rest in Willpower with both respective starting traits.
Back Left: Human Rogue, Daggers + Reach/Backstab
Back Right: Human Mage, Fire/Spellcraft.