Not only did Adam disobey God, but he also was also guilty of dereliction of his duties, because he didn't do his job as the head of the house and was influenced by his wife.
Therefore, from a moral point of view, Adam's sin is far worse than Eve's. He sinned twice.
Genesis 3:12 :
And Adam said: The woman, whom thou gavest me to be my companion, gave me of the tree, and I did eat.
He tried to blame Eve for his own sins, which is absolute nonsense, because what kind of pathetic man would obey his wife?