Also, i forgot to mention that the very hero class can have a big impact on someone's gaming perception. Let's assume we all start as noobs. My first try at the game was with the warrior. I was able to kill any army flagged as 'slightly weaker' and below, while those 'match' were troublesome, involving some cannon-fodder losses.
Next time i tried the mage, and everything went like smooth sailing, 'slightly stronger' armies are not a problem now! Zero losses! Mind you, i never leveled (yet) past level 7-8 (i'm green)and, later, my mileage will vary, but i can still take note of the radical difference at percepting the game with those two different classes