I don’t think anyone of us outright dislikes certain family members unless there’s abuse goin on; at most there are only certain traits about them that grind our gears, like my grandfather who talks too loud all the time like he’s on a stage
My list is too long so I’m just gonna say cousins and mom. Btw this ain’t just ugh they annoy me, they legitemely dislike me and the other way around lol.
My dad gets angered quickly and my sister can be whiny and irrational, they’re like a bomb when combined. I wouldn’t say I dislike them too much though.