How do Atticus and Aunt Alexandria differ in their perceptions of the Cunninghams?

The Cunningham's have gained Atticus' respect because the one member of the family who'd served on the jury actually took time to "think" before deciding on his verdict. He was all for finding him innocent and showing good sense regardless of the opinions and racism of everyone else.

When Jem asked if they could have Walter home for diner (after Atticus' revelation). Aunt Alexandria was less than welcoming of the ides. She said,"..... but they're not our kind of folks," meaning "yappy," "tacky," not refined enough for her niece and nephew, or for their family. Aunt Alexandria is still a bit haughty.

Aunt Alexandra has a sense of social hierarchy. Aunt Alexandra is all about ones breeding and family history. She looks down on people like the Cunninghams while Atticus sees them as simple hard working people. Atticus does not believe in social class and breeding to separate people.