Auto-translated
I have several favorite factions. Although, I can only judge based on the "Rise of the Elves" expansion. I probably enjoyed playing as the Legions of the Damned (also known as demons), the Undead Horde, and the Mountain Clans the most. Demons are a force to be reckoned with, plus their magic is quite helpful before a battle; the Legions are too straightforward, a bunch of units immune to weapons, plus being able to easily defeat a creature like a black dragon, which can't handle undead, makes them a rather boring race for online play for the same reason. And then there are the dwarves – not the fastest race to start with, but rather one designed for a long game and development; however, later on, they are very difficult to kill – they have sturdy units and various armors. I'll also add that it was with the dwarves in the standard game, without any cheats, that I captured the enemy's capital.