The most powerful hero of the Dungeon faction. Auto-translated

Let's discuss and share opinions about the most powerful hero (first from the campaign, then from a scenario) for:
0. Duel maps
1. Small maps.
2. Medium maps.
3. Large maps.
4. Huge maps.
I'm looking forward to your choices. (I'll share my choice later;))

0. Sinithar
1. Vaishan
2. Vaishan
3. Letos
4. Letos

I agree with everything except for point 4 – that’s where I’m playing as Sorghall.

0. Sinithar
1. Sorgal
2. Erin
3. Letos
4. Sinithar

Actually, Sinithar is weak. In the final battle, his ability doesn't play any role.

Actually, Sinithar is weak. In the final stages, his ability doesn't play any role.

That's why he's useless in the late game.
Sorlag, on the other hand, becomes stronger.

It seems that the Elves don't really have any strong late-game heroes. Well, only Lethos, and Erin, but that's a stretch. The Lizardmen's Sorgala has a significant drawback: the "bite" ability doesn't really fit with the concept of Lizardmen as fast and weak warriors, created to destroy stronger units and die almost instantly afterward. Although, if you think about it, nothing really fits with the Witches either; they aren't really good fighters, only their spellbook is a plus.
For a short game, I would take Vaishan, and then switch to the first Chaos Knight that appears in the tavern, giving him the lucky charm. This scheme will also work for a medium-length game.
I don't know about duels; there's a guide on the site, but it's probably outdated. And I personally don't enjoy duels.

What does the word "doesn't resonate" mean in your post?

This means that the more durable the unit possessing this ability, the more effective it is, and the more difficult it is to counter.

Regarding the weakness of the Sylvan. It is weak on large maps. But on duels and very small maps, it is strong. In general, all the best Sylvan units are in the campaign. For example, Railag on a high level reduces the initiative of enemies by almost half. And that's quite significant.

I think Sinistar is quite good. He performs his role well, and I never use him with Arcane Wave, as many have mana problems. He is ideal for that very purpose.

Personally, in the late game, I level up the Griffon, focusing on increasing its Might, Attack, and Leadership skills for Retribution and Speed Aura. I should immediately say that I don't play online, only against the AI, so I don't know if this build would work in online play. But the damage output is very high.

I didn't play online much; I mostly played against the AI on giant maps at the veteran difficulty. I always choose Sinister. With the right build, including Spellpower, absolute magic resistance, a full set of useful artifacts, and two towns of the same faction, I could tear through at least half of the enemy army with magic. The Earth Shock spell alone did 17k damage.

0. Sinithar
1. Sinithar.
2. Lethos.
3. Vaishan (since Sinithar isn't that great because there's enough mana, and there's plenty of meat, so poisoning Lethos is no longer relevant).
4. Vaishan

Added 3 minutes later

He tore apart at least half of the enemy army with magic. Earth Shock alone dealt 17k damage.

But under these same conditions, any Warlock can unleash such Earth Shocks, while also buffing troops like Vaishan, Kifrah, and others).

How many units can Lethos affect with his ability at level 20, and what is the damage dealt?
And why doesn't anyone mention Iruna? She develops quickly if there are two level 2 dwellings on the map.