Luna is braver than many Gryffindors. Luna is ready to go to the Ministry of Magic at a moments notice to fight against the death eaters. No other Gryffindor students wanted to go with Harry except Ron, Hermione, Ginny and Neville. There are many Gryffindors that could have gone instead but Luna was braver than them, and she was ready to help Harry.

Luna isn't afraid to stand out. She is proud of her father, who is the editor for The Quibbler, even though Hermione said "The Quibbler's rubbish, everyone knows that." - Hermione Granger. Luna didn't care that she didn't have many friends. And she didn't care that she was not in Gryffindor, like all of her friends that she made in the fifth book.

Not to mention, Luna still managed to have a good attitude in the cellar of Malfoy Manor. She was happy to help and kind to Dobby. She also didn't want to leave Harry and Ron to save Hermione, she wanted to help. But Luna is just amazing like that.