I was thinking this would be a good way to figure out who she really is and how she does things. So, which personality type is Harley Quinn in your opinion??

I would say chaotic neutral, she's a total psycho, so the chaotic part is pretty much assumed. I'm gonna say she's neutral though because while she is incredibly violent and does a lot generally evil stuff. There's usually a somewhat good reason for it. She rescued her friend Ivy and Bruce Wayne. She formed a gang to help clean up the streets. Evil people just don't usually do these things even if they are selfish and a bit shady. She even formed a superhero crime fighting duo with Power Girl!