Funny how the ones considered to be naive are in my top 2. Anyways, Snow White is so sweet, but she is naive.

Both

I think so. She has a reason, though. Being abused for 18 years.

Snow did ONE naive thing where Rapunzels whole view of the world is naive.

^Agreed with the last two.

And there's nothing bad about being naive anyway. It's different from being flat out gullible or unintelligent.

She didn't think the queen would find her, and she suspected nothing of the queen when she offered the apple. So I'll go with Snow White on this one.
I don't think there's anything bad about being naive at all, though. It usually has negative connotations, but for these two, naivety doesn't bother me. :)

She could just not accept the apple!!! She could've told the "poor old woman" that she isn't allowed to take things from strangers and listen to her friends because usually animals can feel danger more than humans but nobody listens to them in movies.
The dawrfs warned her to not talk to anyone and that the Evil Queen could be anywhere and disguised as anyone. She just had to stay inside the cottage instead of singing by the window while making a pie.
Rapunzel learned really fast. I don't find her that naive. And at least she had a reason to be so. She never saw a human in her life other than Mother Gothel and she brainwashed her.