Emi Kizaki is the lowest... err, I mean, highest on this list because she's actually nice to Kouichi... when she isn't slapping the shit out of him for accidently looking at her naked (emphasis on the word "accidently").

Shizuno Endo is the same thing as Emi, except she never acts nice to Kouichi, treats everyone else (including her own brother) the same way, and basically has some sort of superiority complex.

Misaki Matsuya is pretty much a complete and total bitch with a superiority complex (not unlike Shizuna), especially towards Iwata. In the manga, she's a tsundere who slowly develops feelings for Iwata. However, that doesn't sweeten the deal even a little bit, since I happen to hate tsunderes.

Olivier Armstrong... again, superiority complex.

Ukraine... *sigh*... you know... I happen to like big breasted characters (most of my favorite female characters have large breasts), and there's nothing wrong with giving a female big breasts. However, making a female well endowed is not going to fucking help if she doesn't have even one iota of personality or likableness to back it up.

idk excel saga and linebarrels of iron...

I only know 4 and 5 and I don't hate either of them, but I don't really care for Olivier.