I'll rank Berryz singles, too!!
01. Special Generation
02. Jiriri Kiteru
03. Anata Nashi de wa Ikite Yukenai
04. Gag 100kaibun Aishite Kudasai
05. Nanchuu Koi wo Yatteruu YOU KNOW?
06. Waracchaou yo BOYFRIEND
07. Koi no Jubaku
08. 21ji Made no Cinderella
09. Piriri to Yukou!
10. Fighting Pose wa Date ja nai!
11. Happiness ~Koufuku Kangei!~
I tend to like the serious & "kakkoii" songs more, that's why the ranking is like that. I would've ranked Koi no jubaku higher too, but Waraccahou still has the freshness factor making me want to listen to it more
Basically the whole top 7 is songs I fricking love and songs that fricking kick arse, and the last 4 aren't bad either.