Basing this off my cdjapan order history (since I bought some hard copies from prior releases):
Morning Musume '14
-Egao no Kimi wa Taiyou sa / Kimi no Kawari wa Iyashinai / What is LOVE? [w/ DVD, Limited Edition / Type D]
-Toki wo Koe Sora wo Koe / Password is 0 [w DVD, Limited Edition / Type D]
Berryz Koubou
-Ai wa Itsumo Kimi no Naka ni / Futsu, Idol 10 Nen Yatterannaidesho!? [Regular Edition / Type B]
C-ute
-Crazy Kanzen na Otona [Regular Edition] (from 2013)
-Kanashiki Amefuri / Adam to Eve no Dilemma [Limited Edition / Type D] (from 2013)
-Tokai no Hitori Gurashi / Aitte Motto Zanshin [Regular Edition / Type A] (from 2013)
-Kokoro no Sakebi wo Uta ni Shitemita / Love take it all [Regular Edition / Type A]
-The Power / Kanashiki Heaven (Single Version) [Regular Edition / Type A]
S/mileage
-Aa Susukino / Chikyu wa Kyou mo Ai wo Hagukumu [Regular Edition / Type B]
Juice=Juice
-Hadaka no Hadaka no Hadaka no Kiss/Arekore Shitai! [Regular Edition / Type A]
And does Kikkawa Yuu count as H!P still for this purpose? Because I bought her Urahara Temptation / Iijan Regular Edition too...
~
I plan on buying the Blu-ray of MM's spring concert tour when I order their upcoming single. This is kind of fun though... I definitely felt like I was liking C-ute more and more since last spring, and I guess my purchases sort of reflect that
. They sort of become a very very close second to MM in my H!P faves.