Hidden differences between classes

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What differences there are between classes?

What I have found so far:
-When taking leadership at level up mage gets 40, paladin 50 and warrior 60 times the level.
-On level up different things are more likely to be offered. For example mage is more likely to get intelligence etc.
-Each class is more likely to get more runes of their type.
-All classes have 2 skills of their own.

Any other differences between classes?