Kitty's speech defending Nightcrawler from Stryker is incredible. It carries so much more weight given how much she feared and shunned him when first joining the X-Men. It's made even better when you consider the fact that Kitty is religious herself.
Stryker: You are call that thing human?
Kitty: More human than you! Nightcrawler's generous, and kind, and decent! He had every reason to be bitter, every excuse to become as much a demon inside and out, but he decided he's rather laugh instead! I hope I can be half the person he is and if I have to choose between caring for my friend and believing in your god, then I choose m-my friend!