why do different leaders have different leadership scores?
 

im kinda new to the game, and im looking at the three heroes, and i noticed that the mage has alot less leadership than the warrior. i was wondering why that is?

the differences that i have seen of the heroes dont seem to me make a big enough difference to have that much lost leadership.

what do yall think?

First it seems the difference is small but as you progress in the game you'll find that warriors get a lot more leadership than mages. (paladins are in the middle)

ya, i noticed, what i am wondering, however, is why that is? what makes the mage so strong that he gets to command so fewer units?

his spells :)

dont all of the different heroes gain the ability to cast the same spells?

yep .. but other classes xcant cast 2 spells per turn at barely can reach so high int .. 60 int mage just destroys everything with spells on normal in no time,
thats creators desicion and you are the first person who care about that. Everyone else have no problem with that.

it depends on the runes you get. and as a warrior you don't have so many magic runes. and besides, the power of the spells depends on the intellect/intelligence and the mage has the highest intellect hence the most powerful spells.