If woman are the weaker vessel, and we (men) sin against a woman, that is worse than sinning against a man.
If you read Deuteronomy 22:22-29, it's clear that the sinful actions of men against weaker vessels (women) brought swift punishment and that the women who
allowed the actions were equally punished. However, I don't think a man sinning against another man is less of a sin, nor would a woman sinning against a man be any less than if a man sinned against the woman. I think sins against others are judged irrespective of gender but there are some sins that
normally make men primarily responsible for because they are the ones who are physically capable of stopping the situation, such as mutual, unwed sexual relations.
BUT, even if the man is primarily responsible because of his strength, the woman is no less guilty because she allowed it by not screaming for help.
A man sinning against another man is not less of a sin but the dynamics of the circumstances would typically be different so as to make a mutual sin
not the primary responsibility of one party but there would be equal guilt and equal responsibility because neither would be the weaker vessel.
But it really is about circumstances. As mentioned above, women can be guilty of seduction if they are the "aggressor," though I still think that the man would be primarily responsible
in a sense for allowing the situation to become worse; he can physically stop it while she can only draw him by the sinful desires of his heart.