Why does scout wish her father were a "devil from hell"

She wanted him to be a devil from hell because that would be impressive to her peers.

Explanation:

Scout did not think her father was in any way funny, exciting, or enviable. This is why she said she wishes Atticus was a devil from hell.

Because that would at least be interesting and impress her peers. Overall, Scout does not find her father exciting, amusing, which is why she sarcastically says that she wishes Atticus was a devil from hell