Ap or Altap

As a demon enthusiast, I'll say this: there are four main selection criteria: 1. Your opponent. 2. Tactics. 3. The map and game conditions. 4. The hero's development path. I don't see any clear advantages of one upgrade over another (using Hellhounds as an example: the "fiery" breath is only useful against a player (the chance of a successful breath is very low, plus or minus the probability of hitting your own units), while -1 damage works everywhere, especially in large-scale battles... Cerberuses, on the other hand, provide a confident and stable attack with noticeable damage). The same applies to other units. --- *P. Offspring reliably halves a unit of goblins, peasants, skeletons, or imps. *It is not recommended to use demons in a squad or when "foreign" troops are present. *The Archdemon's skill is very useful from a tactical point of view. *A squad of Cave Lords does an excellent job against outposts and strong neutral creatures. *Imps and Lesser Imps in large numbers significantly reduce losses from enemy magic. *Lesser Imps are an excellent companion for druids and archmages (by the way, replenishing the Inferno army with them is always a good idea). *The disadvantages of Inferno can be mitigated with appropriate artifacts.