2. Anna and Kristoff
Final Score: 33/40
Odds of meeting: It's unlikely, but not impossible, that Anna and Kristoff would have crossed paths had Arendelle not been trapped in eternal winter.
Obstacles overcome: After battling the elements, fighting off wolves and escaping from a giant snow creature, Anna and Kristoff must race against the clock to save Anna's heart from freezing over.
Friendship: The more time they spend together the more they genuinely like each other, and the more time they want to spend together. Theirs is a pure friendship, free from any pretense.
Likeability as a couple: It's hard not to fall in love with Anna and Kristoff, even before they realise they've fallen for each other.