I have mixed feelings on Kennedy. She wasn't very likable but she was the only Potential who had a Slayer's attitude. I hated the whole Potentials thing. They invaded the show and screwed up the in-group dynamic and we were never given any reason to care about them or be interested in them. And that trick of making you think Dawn was one and then revealing that she wasn't was both dirty and stupid. Had she been one it might have redeemed the whole Potentials nonsense. Major missed opportunity.