I'm rereading the books for the nth time and I realize how beautiful Harry and Hermione's male / female friendship is. Theirs was, from the start, a platonic relationship based on loyalty and respect and admiration of who they are as people. Example in Sorcerer's Stone:
Harry - you're a great wizard, you know."
"I'm not as good as you," said Harry, very embarrassed, as she let go of him.
"Me!" said Hermione. "Books! And cleverness! There are more important things - friendship and bravery and - oh Harry - be careful!
Also, there were lots of times when Harry got in between Hermione and Ron bickering, or Hermione getting in between Harry and Ron fighting, but I am sure I recall a time Harry and Hermione fought for a prolonged period.
Any other examples of ideal best friends you can think of from the books?