What is your opinion about Heroes IV?

In simple terms, if I'm playing against Chaos, I can have a lot of options to customize my strategy, not just in terms of troops, but also in terms of combat behavior models. Whereas in the fifth game, there aren't as many models available.

I would really like a couple of specific examples of when the same faction, on the same map, against the same opponent, can apply a variety of approximately equally effective different tactics for development and combat. If possible, using an example from the ongoing World Championship, where there are maps and reports, so it would be easier for me to understand, because I'm not a monster in online games, especially in the fourth game. P.S. It was a mistake to reduce the options for the initial placement of units in the fourth game. Although people still considered the game too complex.