I agree with Doph's here, whether it's down to talking to them less or they annoy you more than others or anything it is a natural reaction to have 10 least favorite, I find it incredibly hard to name them but there will be at least 10 people I talk to less than everyone else meaning they would be my least favorites. I don't dislike them but I don't interact/ not as comfortable with them as I am others.
Tbf this will be harder for Crayo as being the owner he talks to everyone a lot. I don't dislike anyone, and I'm not even sure I could name them, but there will be 10 people I don't get along with as well as I do with others.
Edit* Nvm, I thought Crayo was disagreeing with Dolph's, but they are both just arguing the same thing in different ways. I'm so out of touch.