I have a feeling THE D-Motion's a b-side because the title would have been way too long to be a double A-side!!!
anyways at the moment I like
KAT-TUN: The D-motion
Jin Akanishi: A Page
Arashi: Tokei Jikake no Umbrella
KOTOKO: BUCCANEER
Nana Mizuki: BRAVE PHOENIX
Perfume: edge
Perfume: SEVENTH HEAVEN