Problems with Heroes of Might and Magic IV.

KENNU, based on what principles do you think that Heroes 4 is more balanced?

Well, firstly, there aren't any clearly outstanding strong factions or creatures (unlike in Heroes 5, where units like Druids or Hunters can wipe out an entire army). Secondly, there aren't any spells that create imbalance, like Flight or Teleportation – the latter being the most ridiculous of the three. Furthermore, stronger units move slower than other units of the same level (for example, the Ballista), which means that stronger armies are usually slower, while armies consisting only of mobile units are more agile, giving them a certain advantage. I can't think of any more examples right now, but there are others...