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1. Oris advanced too far and got ambushed, but only lost 4 Elves and 6 Centaurs. Although the losses could be higher. Don't use Morale. Be sure to take the helmet from the enemy.
2. Vokial takes the Impaler on turn 40, without waiting for reinforcements. Losses: 4 Skeletons (no anti-morale effect).
3. Standard tanking with a catapult during the assault on a secondary town, but the speed and strength of the garrison, as well as the need to move the Dwarves out of harm's way, complicate matters. Losses: 5 Centaurs, at worst 1 Elf.
4. 17 Eye units with amulet, magic, and tactics against 21 Eye units. Losses: 5 Faeries (without morale effects). Trolls are only for mass.
5. Losses: 3 Skeletons and a Ragman, but only thanks to the good damage of the Skeletons.
If anything, skilled players might find the first battle interesting, but even that is unlikely.