In your opinion, which faction is the strongest in Heroes 5? Let's discuss the advantages and disadvantages of each faction.

Few people play as them.
But I can defend them. They have a wonderful ability – the Call of Urgash. It helps to quickly deliver units from Shi'o. It works very well with the Wide Gates and Fast Gate Opening abilities. The Mage Guild is focused on Chaos and Darkness. The main characteristics of the hero are attack and knowledge. They can overwhelm the enemy with their spells. Since I played as Inferno and at level 23, the hero has 190 mana. During a siege, they can send summoned troops through the walls. This is very helpful. Archdevils resurrect Cave Lords. The Lords wield the Searing Blade, so even 1 Cave Lord can defeat a Phoenix with 1500 HP or more.