From worst to best.
Stannis & Selyse Baratheon
These two basically treated their daughter like livestock: Locked her in a cage for her entire life and then burned her at the stake as an offering to the Lord of Light.
HBO / Via google.com
Mr. & Mrs. Olly
If anyone should be burned at the stake, it's these two for releasing the demon spawn himself into this world.
HBO / Via youtube.com
Craster
"Crasternomics" - noun: Sustaining your stronghold by trading your sons to supernatural creatures for protection while creating an endless supply of children by marrying and impregnating all of your daughters.
HBO / Via google.com
Daenerys "Mother of Dragons" Targaryen
Dany is that mom who has 18 different "MY KID IS AN HONOR STUDENT" bumper stickers on the back of her minivan despite her kids bullying the nerds into doing their homework. Her oldest child killed someone and ran away from home, so she chained the other two up in a dungeon instead of, you know, teaching them not to kill people.
HBO / Via google.com
Posts
The Definitive Ranking Of Parents On "Game Of Thrones"