Hakoda: Goes to fight in the war... eh. You've got kids, bro. 4/10
Kya: Dies. Like, what the hell? C'mon, you're better than that. 2/10
Toph's parents: The literal definition of Karen. Boooooooooooring. 1/10
Aang's parents: No freaking idea. ?/10
Ursa: Runs away from her kids like she doesn't give a crap. Contributes to daughter's loss of sanity. Not the best. 2/10
Ozai: Sets goals for his kids, and helps them achieve them. Pushes them to become the best they can be through studious practice. Helps them become successful in their later life. Hated, nonetheless. He knew they would dislike him for it, but he selflessly helped them grow to succeed. A selfless, kind parent. 10/10