Hands down Jack Frost. For starters, compared to all the other versions of 'Jack Frost' out their, he isn't instantly murderous and isn't a literal snowman with your dads soul or something to that affect. Not saying he doesn't snark or wouldn't freeze someone if they ticked him enough, he just doesn't go around doing it, 24/7. He'd just rather be your 'friend' or that itch you just can't quite scratch ~

SC3 wise, he's surpisely social, personally, before I saw the movie in theatres I thought he was going to be like Scar from the Lion King.
But instead he turned out to be; social, cheesey, sleazy, womanizer, liar, egotistic, suck and immature who thinks he's the best thing since swiss cheese.

He's also considerably, well rounded for a Disney Character. Which for one movie is impressive.
He's flawful, in many ways, even if he won't admit it or doesn't know it.
Acts like a seven old and likes to play and joke around, even if he's really or rather can be, a very serious.

And his obsessive to be Father Christmas is rather cute, and if you look up stuff it rather makes sense out of canon as well.

Um. He talks in my head the most? The downside he takes a lot of enegry to RP. That's the only thing.

And he's rather right, Christmas is Frostmas :/

Oh, and has a lot of little quirks. :)

He also can be good and evil.

And sorry Azula mun I babble. *steps away*