I love Zatanna
She cheerful, but can be very sharp and witty and I love how classy she is. She is very bubbly and charming. She loves attention and being in the spotlight, but deep down she is a loner and has a deep daddy issues. She also loves costuming, because her whole life revolves around her performance as magician, and the outfits are part of her act. Her act then then drips into her superheroine life. Zatanna while obviously beautiful, still comes off as very down to earth and approachable. Just look at her gallery of boyfriends. While close with Bruce Wayne and John Constantine, she open to opportunity to have times with common folks.
She is pretty relatable especially when she fall to her deppresion. Those mistakes she has done after she losing both her parents make her relatable to imperfect people like us. She lost confidence, haunted by shade of father legacy and mistakes she makes, then struggling though failures and problems to finally overcome it with her apprentice help. See for Seven Soldiers story if you interested.
Oh also all that sweet looks, she is pretty vengeful. I remember one Halloween story when she terrorise a group of bullies after make a kid fall to trauma. Also her fight with Lobo in Reign in Hell when she flayed Lobo skins alive for Damned her father soul