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

To the question of which heroes are stronger, the most accurate answer would probably be: on which map/scenario, and according to what rules are we playing?
That is, mages with a ban list are one thing, mages with restrictions are quite another. Playing on fixed maps is completely different from random maps, etc.

to Artemiy - while you are leveling up all the schools of magic, you will be defeated.