8. Bernard and Bianca
Final Score: 27/40
Odds of meeting: They both work for the Rescue Aid Society, she as an agent, he (at first) as a janitor - not too surprising they should meet.
Obstacles overcome: Outwitting the greedy Medusa while outrunning her pet crocodiles is all in a day's work for these brave mice.
Friendship: One of the reasons they work so well together is because they are such good friends, who rarely, if ever, disagree.
Likeability as a couple: Bernard's attaching awkwardness and Bianca's charming ease balance each other adorably well.