For the education and attention/opportunities afforded to my child not to be based on how much a teacher likes my child, or how much time I put in at the PTA or if I am a Governor. That would be a start.
I really fucking hate nepotism, it was rife at my school a few years ago, then there was a big scandal about money "resting" in some one's safe .
I could not give a tiny shite if you like my child or not, your job is to teach them and give them as much attention as any other child.
My dd was miserable in year 3, I could tell the teacher didn't like her, dd was fine and said she loved said teacher.
Since cowface has fucked off to the far east and dd has a teacher who is new to her, she seems much happier.
Honestly there was a bit of a teacher exodus, then they got a satisfactory rating, since the rating, quite a few shite teachers have left and more recruited. Funny that.