HoMM 5 >Heroes
The heroes are still the pillars of the whole game, and there should be a lot of flexibility in their development. The individual heroes should also have unique, but balanced specialities and flaws.
Alchemy
Might: Blademaster
Magic: Alchemist
Archeon
Might: Commander
Magic: Witch
Barbarian
Might: Barbarian
Magic: Shaman (only limited magic abilities)
Chaos
Might: Scout
Magic: Sorcerer
Death
Might: Death Knight
Magic: Necromancer
Life
Might: Knight
Magic: Priest
Nature
Might: Archer
Magic: Druid
Order
Might: Lord
Magic: Mage