I still like Humans. It's one of my favorite factions, although I didn't like them much before, because they were too ordinary (even in Heroes 3). But now I look at it differently, and my opinion has changed.
Second, in Heroes 3, all the Castles were made more balanced, and now the Knight is just as strong as any other unit, and can even hold his own. The native troops are no longer weaker than the others; they removed the unnecessary peasants, added a good archer, and gave two flying units - a low-level one and a super one, and the seventh-level unit tears everyone apart. It's a perfect example of gameplay. I've seen many players who love the Castle precisely because of its strength.