I haven't seen this movie in a while (nor do I really want to) but I'll just pick Anna because I remember Kristoff's schticks (grilling Anna, his "conversations" with Sven) getting rather repetitive.

Anna is my 2nd favorite Disney princess character (despite not being in the official lineup). Her cheerfulness, bravery, and loyalty are highlights of her personality.

I also didn't like how Kristoff actually contemplated letting Anna die in the woods by herself. I think he didn't really prove his love for her the way Anna showed her love for everyone else in the movie and even almost died to protect Elsa.

I prefer Her personality

She and Elsa match so well.