Othello question

From the opening lines of the play we see an unvarnished Iago, plotting, jealous, prejudice, and so devious in his designs that he wishes to overthrow his military superior. Is this opening, with early and clear insight into a character, out of the ordinary for WS or is this business as usual that merely sets the stage for events?

Act 2 Scene 3 line ~ 300: Iago and Cassio's exchange about drinking is referred to as the "devil" extensively until Cassio finally succumbs to drunkenness which leads to his eventual unraveling. Is this biblical allegory?

Act 2 Scene 3 has numerous references to "reputation." How does WS intend us to view Othello's reputation? A war hero? a vain and petty person? or an everyman?

Act 4 Scene 3 Emilia puts forth an argument about the desires of women that is radical for the time. Rife with inuendos but also grounded in legitimate illumination of hypocrisy between the sexes. Is she a feminist of the time or is WS playing a game where he wants to communicate her own licentiousness which is called into question repeatedly throughout the play?

Is Emilia hypocritical in her own right for deriding men while also aiding her own husband in a subservient manner with his plot to destroy a marriage?

Is Desdemona a stark contrast to Emilia or a similar comparison? Does she sufficiently challenge or dispel Othello's unfounded allegations of her infidelity?

Is Iago merely another WS plotting villain or does WS intend for him to embody something more sinister, something otherworldly?

Who is most similar to Iago in each of our lives? And why do we unanimously agree that it's David Bahr?