(I know these books are usually marketed as "children's books" but many adults still enjoy them. Since I'd be reading them as an adult I thought it better to post here instead of the Children's Books forum.)
Which series is better in your opinion if you've read both:
The Dark is Rising sequence by Susan Cooper or The Chronicles of Prydain by Lloyd Alexander?
I'm interested in easy-to-read fantasy dealing with themes of Celtic mythology, which I know are present in both series. (Of course I'm familiar with Arthurian legends, stories from the Mabinogion, etc. from other sources so these "children's books" will not be my first foray into these realms.) I will say that I am someone who enjoyed Chronicles of Narnia, Harry Potter, and His Dark Materials far more than Lord of the Rings (which often felt like an elaborate exercise in world-building but didn't connect with the reader as well as the other series). I'm not interested in watching any film versions so please base your recommendations on the books only. Thank you!