My favourite would probably be beloved. Everyone looked good, the settings/ set were simple yet effective, and the directing isn't as awkward as Ayu's PVs have been nowadays. Why... was pretty but I felt that it could have been a little more dramatic, given the costumes and the set (but then it wouldn't suit the song...). Progress and BRILLIANTE were interesting but as with some epic Ayu PVs, there's something lacking. Maybe there could have been a couple more varieties of scenes. ANother song is just...boring. Typical RnB PV which obviously doesn't really suit Ayu. She looked great in it though, really like the styling.
Overall I'm satisfied with them and I'm happy that Ayu's trying out new stuff again
