What is the best Harry Potter moment in either the books or the movies?

there are many moments that are truly amazing, but for me the best one will always be the scene when they see Hogwarts for the first time

The best part in the Harry Potter books is when Ronald Weasley and Harry Potter meet Hermione Granger. I find it's very weird and funny in a good way that makes my little bro laugh when I read the book to him. In the movie it's much more liveable and awesome because of the actors' voices. The saddest part is when Dobby dies. I watched HP2 in the world's biggest LG imax movie theatre and I cried so much that people around me were looking at me....
HP rocks!

Any Bellatrix scene is magical to me.

Every min in the movie was great

The Yule ball spooking cute

For me - it's the part where we find out that Tonks loves Lupin - where she tells him she doesn't care that he's a werewolf - I always read that part twice when I get to it lol

Every scene which Severus Snape is in he totally owns the screen. But his 1st scene in HP/PS and his speech to his last scene ALWAYS brilliant.

My favorite is the 19 Years Later....my fav character comes in and it's just really fun. I liked the book version better than the movie one but they're both AWESOME! :)

My favorite scene is the one with the destruction of the locket horcrux. I love every bit of that part from the discovery of the silver doe to Ron's triumphant return! It's awesome. There are tons of other great scenes, but it would take all day to list them.