well, i think that hades weakness was that he was passionate over his wife.
Hades' weakness is his passion and love for Persephone.
Hades' weakness is Persephone.
Persephone is Hades weakness.
I would say Hades' weakness is Persephone.
His weakness is Persephone.
It depends upon the interpretation of the deity by the individual.
Persephone, his impulsiveness, and his sometimes deceptive nature.
Hades really doesn't have a weakness. but if he did I'd think it's love and happiness because he likes hatred and destruction.
As a God he cannot die but he could be tricked
When Persephone, her daughter was Kidnapped by Hades she forgot to grow things.
Hades' Weaknesses: Passionate over Persephone, the daughter of Demeter, whom Zeus promised to Hades as his bride. (Unfortunately, Zeus apparently neglected to mention it to either Demeter or Persephone.) Impulsive, favoring sudden, decisive actions. Can also be deceptive.( http://gogreece.about.com/cs/mythology/a/mythhades.htm )
Strengths: He is determined and persistent. Also wealthy from the riches of the earth. Weaknesses: Persephone and his passion and love for her can be a weakness for him. He is also very impulsive, quick to make decisions, and can sometimes be deceptive.
Greek gods were not superheroes with set powers and weaknesses. He could do pretty much whatever he wanted. In the Underworld his rule was absolute.