No, I would never hate anyone, only their actions and/or behaviors. Besides, if I felt strongly over some aspect of themselves (rather than simply ignore them), then that means that this aspect affects my life in some way (negatively or positively).
I don't think that you should 'kill' something because you don't like it or can't get along with it. As Batman would say, "It would be too easy." Death/murder is a simple solution to a rather complex problem. Only by understanding why you feel so strongly towards something, try to work around it or learn to deal with it in a way that makes it seem like a minor annoyance rather than hate, and eventually, can you reach a point when it will not bother you at all.