Board Thread:Manga Discussion/@comment-28702329-20180621120402/@comment-34634218-20190216091516

most to least evil: dio(is arguably the only villain who enjoys the evil he commits) kars (he is not "evil" in my opioion but he did commit genocide so...) kira (if he was at all torn up over his fetish he could ignore his urges) diavolo (hes really just about as bad as any mob boss... killing is normal for him) valentine (he may have "pure" intentions but he does the most heinous things id say out of all villains) and then last would be pucci (I feel that he is in the same boat as valentine but he overal wasnt as bad of a person, and many of his actions can be dismissed via dios grooming)