Everything about heroes.

I take Ossir, develop his logistics, light magic, leadership, and wizardry. Super ability, I've never developed it before. In chests, I always take experience, money, and sometimes items. In arenas, I take what I have the least of. I developed Deidre the best. In principle, it's easy for me to play with any hero I've developed. My record is 5 - 28? I advise everyone to develop leadership because it includes diplomacy, which makes life easier, as you kill two birds with one stone: you have defense in the castle and the best monsters of all races. But first, you naturally need to take the majority of the "native" army. And then, carefully bring it back to the castle when you already have some neutral creatures that have joined your army. Without luck, life is no longer life for me.
I only take secondary heroes to defend the castle or to bring in or take out some army.