While his strength is above average, Hercules isn't all that intelligent. But what the hero lacks in outstanding brains, he makes up for in compassion and the desire to do good, which is especially appreciated in a world with constant turmoil around every corner, be it by the hands of a demon or beast, or The Lord of the Dead himself, Hades.
As mentioned above, Hercules is compassionate, and his most dominate trait is, without a doubt, his innocene and massively kind heart, in spite of being treated like a "freak" by his peers and those around him (with the exception of his foster parents) throughout his childhood, and adolescent years. Even after becoming a worldwide phenomenon, Hercules retained his innocence and cheerful nature, not once letting the fame dangerously inflate his ego. This makes Hercules one of the most pure of heart Disney characters.
Notably, whilst usually on the bright side, Hercules has an affective sternness to his personality, notably seen during the climax of the film, where the actions of Hades take a turn for the worse, killing and threatening the entire world of Olympus, as well as Megara. This can be seen again when his trainer and close companion, Phil, questioned Megara's affections towards the hero after witnessing her plotting against the latter with Hades (though it was a misunderstanding at that point in the movie).
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