Pearl is honestly my 2nd least favorite Gem. It has been shown that she doesn't think of Steven as himself, but as Rose, multiple times, which I don't like. I wouldn't like people thinking of me not as myself but as my mother's child. Also, she does a lot of things against the wishes of those it directly effects (Like trying to take Steven into space even though there is a 100% chance of Steven either dying in the explosion of run-down ship or suffocating in space if he survives that, his dad didn't want him to do it, he didn't want to do it, and Pearl took him anyway)