Harry Potter and the Chamber of Secrets was always my least favorite of the books. There weren't any standout moments that stayed with me like in the other books and there was an extended scene with giant spiders. I hate spiders.
But rereading this is a joy and I love the series. I did like the introduction of Tom Riddle and the shock at the end of who he was. This book also has Lockhart who is hilarious. It still isn't my favorite, but rereading it did remind me of how much I do love it.