Pocahontas would find her funny and like her hopeful personality. She'd like that Snow doesn't let Grumpy put her down. Snow would find Poca a bit too wild and reckless but like how she wants peace and how she is with animals and nature. She would think Pocahontas is too pessimistic at times when things go wrong, but otherwise like how altruistic she is. Pocahontas would understand why she took the apple and not blame her for it, but Snow would be sad for Pocahontas when she stays and John Smith goes. They'd find each other playful but Snow would think Pocahontas should be more mature about some things, despite how serious she can be.
I think they'd get along pretty well, but any clashes would happen because Snow isn't a wild free spirit like Pocahontas.