I have a few favorites but my reading preferences have changed a bit since I was a kid. I used to be really into fantasy but now I'm more into historical/history with slight fantasy elements, and non-fiction. But here's my list of my all time favorites:
- Watership Down by Richard Adams (Fantasy)
When I was a kid, I used to love reading books with animal protagonists (White Fang, Call of the Wild, Silver Wing, Warrior Cats, Redwall, etc). but Watership Down was my absolute favorite. I liked how it didn't tone down the violence and it did a fantastic job with worldbuilding and fleshing out the the lives of wild rabbits.
- What Do Fish Have to Do with Anything? And Other Stories by Avi (Slice of Life)
Also a childhood favorite. Avi was an author I really liked a lot as a kid and this book in particular really spoke to me. It's a collection of short stories about kids whose lives were less than perfect and had difficult episodes in their lives and I could relate quite a bit. Reminds of Hey Arnold! in that regard.
- The Inkheart trilogy by Cornelia Funke (Fantasy)
I loved the characters and villains and I thought the concept was pretty original. If could read characters out of books, I'd do it in a heartbeat!
- Abhorsen series by Garth Nix (Fantasy)
Necromancy! That's all I have to say!
Seriously though, I love how necromancy is used here (The bells are so cool) and how the land of dead and the dead themselves are described. If someone raises the dead, somebody has to put them to them to rest!
- The His Dark Material series by Philip Pullman (Fantasy)
Again, a series that has excellent worldbuilding. I really wanted a daemon (fyi, it would be a cat). Also 12 year old me thought these were the most shocking books ever.
- The House of the Scorpion by Nancy Farmer (Sci-fi)
Usually, I'm not a huge fan of sci-fi as a book genre but Nancy Farmer has a really good knack for humanizing her characters. One of my favorite concepts in the novel is "what is family?". Matteo as a clone questions his identity at every turn and learns how to become his own person, separate from his own flesh and blood. It's something we all have to do in our lives, at one point or another. Plus I really wished Tam Lin was my adoptive father. ;_; Adopt me rugged Scottish Papa.
- We, The Drowned by Carsten Jensen (Historical Fiction)
Found this book in a college bookstore one day (see bookstores are important!) and saw a ship on it and I was like, "I like sailors" so I bought it and didn't regret it! It's about three generation of sailors in the Netherlands and how their lives out at sea affected the lives of those back home in their sailing town. Basic, but the characters are great and sometimes I just want a slower paced book.
- The Terror by Dan Simmons (Historical Fiction/Horror)
My most recent favorite and for good reason! Very suspenseful, great characters and it's interesting to see how their fates all intertwine with each other, the elements, and the beast that stalks them on the ice. Plus it has sailors!
Honorable mention:
The Animorph series by K. A. Applegate. I loved this series as a kid and surprisingly, it's a pretty dark series, dealing with themes such as body horror, death, war, and self-sacrifice. It's basically a sci-fi series about child soldiers. But hey, I was too caught up wanting to turn into a cheetah to catch all of that when I first read it. Nexflix, please consider turning it into a mini-series!