I decided to pick up Fire Emblem Awakening again recently and now that I find myself knowing what I'm doing when it comes to playing the game, I can focus more on the pairings and grinding my characters. My first playthrough worked out fine since all I needed was a level 30 Polestar King Marth with the Exalted Falchion...
Anyway, I originally paired MU with Lissa and it worked out great, but I barely used any of the Gen 2 units besides Morgan and Owain. This time I wanted to try something new and pair MU with Nowi for the lol(i)s. At the same time however, I realized that Cherche is really good too and I can have Nightwing as MU's son. What this comes down to is which character is a better pair for MU in terms of combat ability, skills, and children.