On one hand, Jubilee is massively underestimated and a frankly terrifying powerhouse, with enough parental issues due to Wolverine that she could easily breakdown and kill half the school before we'd realise she was having a bad day.
On the other hand, she's a good kid. She took me rollerblading once. She's the friendliest dark horse imaginable. And briefly a vampire? The less said about that, the better.