Well Vert is like the most boring of the main CPUs so...I doubt you're the only one. Her rack and the Otaku thing are the only particularly endearing features, she's not bad (Ram, now Ram is bad) but she's eh. But then Rebirth went and ruined Noire and Blanc, plus Vert is very good in battle so she was still one of my mains in Rebirth. Blanc just doesn't play very well IMO. Too focused on single heavy hits in a combat system that doesn't reward that in any real way.
Didn't play much of the original one, even though I bought it, because the framerate killed it for me, so I don't really know how Noire and Blanc were. In NepReb1, even for single target, Blanc isn't outstanding either. Doesn't help that I bought Plutina and she's pretty much replace any single target damage dealer in my party. I like Vert's antic, though.
Not like my reason for liking Noire is any better. I just find her interaction with Neptune funny, and I have a very weak spot for twintails.
[Edit]
TOTP(50ppp): Buy Brandish and while we're at the topic of NepReb, go pre-order Rebirth 2.
Third silhouette is Onechanbara PS4, according to the other topic.
Oneechanbara? I don't know what to think.