The Iron Guard (all warforged):
Battlesmith artificer (Int/Con) or wrathful runepriest (Str/Con)
Staff or summoner wizard (Int/Con)
Two-handed weapon fighter or knight (Str/Con)
Rageblood barbarian (Str/Con)
The Planeteers:
Windsoul genasi staff or summoner wizard (Int/Con)
Watersoul genasi swordmage (Int and Str/Con)
Earthsoul genasi tactical warlord (Str/Int)
Firesoul genasi infernal warlock (Con/Int)
Battlesmith artificer (Int/Con) or wrathful runepriest (Str/Con)
Staff or summoner wizard (Int/Con)
Two-handed weapon fighter or knight (Str/Con)
Rageblood barbarian (Str/Con)
The Planeteers:
Windsoul genasi staff or summoner wizard (Int/Con)
Watersoul genasi swordmage (Int and Str/Con)
Earthsoul genasi tactical warlord (Str/Int)
Firesoul genasi infernal warlock (Con/Int)