Normally I would agree that no one writer has the power to destroy a character or relationship, but King is a once-in-a-lifetime exception. He made me loathe the character and the idea of Catwoman and Batman ever being together. I have no interest in seeing or reading about Catwoman in anything ever again, ever. I'll stick to her classic appearances as well as Batman Returns which is a favorite of mine. But as a character she's dead to me. And before anyone wants to lecture me, yes, I know how childish it sounds but that's just how I feel.
EDIT: And it's sad because King is the only person in history to codify Selina's pre-Crisis character arc and try to mold it into a cohesive narrative with her later portrayals. It was a brilliant idea, and he almost pulled it off. I just don't get why he was so obsessed with emasculating Bruce and doing the Bat-Cat-Bat-Cat stuff when everyone hated it. And don't get me started about Knightmares.