Hey when was it ever decided that Kodachi is the most unappealing 
character of Ranma 1/2......isn't there anyone who moderately likes 
her?...jeez....in almost every fanfic she is a total lunatic who most 
frequently 
gets institutionalized :P.....though I am not a big Kodachi fan.....she 
is a moderately ok character......I can certainly think of nastier ones 
:P....though I won't mention one due to probable protests ^_^

Oh, we all know who the nastiest one is. Her name is Shampoo! Shampoo no
yariman!!!

I Second that motion :)

I want to start a new motion.......the nastiest character of Ranma 1/2 is 
without a doubt........AKANE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Sou desu ka? What makes you think this, besides the fact that she doesn't
try to murder people (*try* I said... that dsoesn't include her cooking),
she doesn't run around trying to force herself onto guys who don't want
her... in face, she doesn't force herself at all... she gives her life
to save Ranma from dying... She doesn't attack the other fiancees of
Ranma... She would marry Ranma, even if she didn't want to (but she does)
just to get him nanniichuan water? That makes her nasty, hmm?

Kun-chan...