I really like how the Weasley's are like a surragate family for Harry 

 .  I especially loved how there was so much of Mr. Weasley in book 5.  I love him so much, he's so funny (not in the same way as Fred and George, he's more of a doofy funny).  And of course, the twins *dreamy sigh* aren't they the best!  They are my favorite characters 

 .  They brought some much needed comic relief to this book.  The whole Weasley family helped keep this book from being so dark that I would need a nightlight, lol! 

   Even Ron did his part with the accio brains part (I know, I know, it was all quite serious in the DoM, but I could help but nearly die laughing at Ron's behaviour!)