I, in general, have also completed almost all the maps; I will write separately about each one. Whisper of Death. Not bad, but not perfect; the map is not fully populated, and some objects are arranged chaotically. There are some scripts, many approaches to the enemy, the possibility of a quick start, and a Dungeon with other players' mines. In principle, it's a good, even a very good map for Multiplayer. HELL INVASION. A large map, but I didn't like the design; there are again many objects arranged chaotically, an invincible Lord, and save game crashes... I didn't finish it. Dragon Utopia. You can see the work done on the landscape and terrain. However, it's clear that the author was in a hurry, especially with the second player's lands. Also, the surface leveling tool was practically not used, which is not good. But the island in the clouds turned out very well, and the dragons too. It's a pity that victory doesn't come, but the quests work, and that's already good. A very good map. Among the single-player maps, I would highlight Firestorm. First, the map is excellently designed, and it's quite large. An interesting, captivating plot, a huge and functional script, old and new heroes that can be leveled up to a good level, and interesting and useful side quests. At the beginning of the map, in the Dungeon, there were almost no difficulties. Of course, I got a little lost in the huge Dungeon, but then I oriented myself. It was difficult to destroy the groups of zombies, 10-12 in each squad. There was also a lot of running back and forth from the witch huts with quests. The quest from the Elemental Lord was also difficult, from start to finish. After emerging on the surface, the difficulties became slightly less, but there were many more difficult battles. Hundreds of thousands of peasants in the huts actively resisted my heroes, but I boldly moved forward, clearing the way, destroying the great city - the Celestial Gates. The main character with the great artifact was absolutely invincible, and even the outpost with thousands of angels and half a million militia could not stop him. And finally, the Stronghold fell, but did a happy ending await our heroes? I won't say about that ;)
I vote in the Single-Player Map category for Firestorm.
In the Multiplayer Map category - for Dragon Utopia.