One DC is definitely easier going and way easier to parent. The other is smart as a whip and funny and fun but harder to parent. But I love that DC fiercely and 100% as much. My DH favors the easier going kid though and it's really annoying.

This is easy I have one child and tell that he is my favorite although sometimes my cat overshadows in the favorite category

Like many of the posters here, I can say with no doubt or hesitation that I love my two daughters equally. And also, one of them has a temperament that is easier to parent, so I enjoy parenting her a bit more. She is easy going, independent, creative, and even keeled.

My other daughter is confident, extraverted, energetic, and brilliant - she is amazing and I adore her. But she is difficult to parent, which is a me problem, not her.