Dumbledore needs to goto Azkaban for putting Harry with the Dudleys, as well as the ilegial blocks and spells Dumbledore placed on Harry, as well as the Dudleys to goto prison for what they did to Harry.
In the Harry Potter and mostly in the Fan Fics Dumbledore never gets in trubble for what he allowed Harry to go through at the Dudleys as well as at Hogwarts.
Snape needs to goto Azkaban for all the thangs he has done to Harry and his family.