I wouldn't really rely on such things! Until something certain be behind it , just saying it, and when it be truth, it's sad and wrong.
A child need to be learnt to love the parents equally, there's nothing such as who you love more! Which in some families they even ask and learn the children to love one side more than the other! And they put the child in situation of choosing. It's a family not a football team.
Father and mother both has their own roles, we have different lifestyles and situations but that doesn't mean one side need to be loved more.
I love "Only" my mother, there's no "more" i love only my mother because i never felt how it feels to have a father. Every single solution i earned in my life and all the opportunities i've got and so many things in my sense and personality, i've got it from her. She's the one who raised me and i can't never replay what she has done. But my father never been there. Not a single image. Of course you can get some images but it gets bitter and bitter as you go through. That you wish you never had those memories from the first place.