Board Thread:The Heroes of Olympus/@comment-29729973-20170816065540/@comment-29068459-20170911032949

For me: 1. House of Hades 2. Mark of Athena 3. Son of Neptune 4. The Lost Hero 5. The Blood of Olympus

Say what you will, but HoH had the most character development. Annabeth and Percy grew and developed in Tartarus (Percy especially, with him seeing his dark side, and with him realizing he wasn't always nice to people (like Nico and Iapetus)). Frank grew from his state of timidity to being a full blown military commander. And Hazel took charge of her destiny. (Though things went downhill for Leo in terms of character development).

MoA had the best plot. Everyone got together, and they had a clear focus. I also think that was Leo's best book, with the whole "seventh wheel thing" (Riordan should have explored that more).

Son of Neptune introduced the awesomeness that was Frank and Hazel (unfortunately, after this, they were shoved to the side).

The Lost Hero suffered from Jason and Piper being 2-D, and not giving them any room to grow as characters.

BoO was a sloppy conclusion. Although it went into depth with my favorite character (Nico), and explored Reyna, everything, from the final battles, to dissipated character arcs *cough Frank and Hazel cough* absentee characters (Percy and Annabeth), and more. BoO was an utter disappointment.