The eternal question: which heroes are better, mages or warriors?

If you're playing on a large map and against the AI, this is completely irrelevant. Towards the middle of the game, a powerful mage emerges from the main hero.

I still remember Sir Mullich with 30 defense and 24 magic power! :D The map was called Brave New World. Therefore, it's wise to give a warrior hero some magical skills – in the future, he will be stronger than many enemy mages.