Best was the one that got me on the edge the entire series. Hated the antagonist at first but once their backstory was revealed, I felt bad for them and I wished they were a RO but they weren’t.
Worst one was the one that honestly just felt like a chore to read. I was excited to read it at first (basically me everytime a new HG or CoG story comes out). But as I kept reading, I became even more and more bored and felt like the story wasn’t going anywhere, and it really did NOT go anywhere, sad to say.