Yes, I remember mention my most disliked NPCs in that group and some of the NPCs mentioned here made me remember some more:
Willy - I hated him, because he was annoying. My first character just ignored everything he said and I knew that we were getting a battle tower soon and that obviously something would be wrong with the house, my second paid and received nothing, so it looks like there was no house after all which made me hate him even more.
That merchant in Broken Valley who sold items that appeared to be magical in the inventory screen but were fakes. Very intelligent of Larian. I liked that but hated the NPC, I wish Divinity II allowed us to kill everyone we came across because he would have been one of them.
Tom, Dick and Harry. < I laughed when I first heard their names but I really hate them. "Argh! Lord..Whaaaaaaaaaa! I'm injured..HEAL ME! WHAAAAAAAA!" These are my personal scouts?
The dancer, that dance was just pathetic. She's dancing for a lord and that's the best she can do?
Oh and Allan - hated him.