In society I've heard people talk about a favorite parent somewhat, but typically anytime it comes to parents having a favorite child it seems frowned upon. Having twins, I am of the mindset that it's difficult for parents to not have a favorite, however I think it's very easy not to treat children differently.
So, is it wrong to have a favorite child?
It might be wrong, but it's hard to help honestly, as long as you never treat your children differently in terms of favoritism.
Follow up:
Were you a Favorite Child?
No, not really or at least only some times.
Whether you were a favorite child or not what was your experience?
Mom would never say it, but based on our behavior she had her favorite at different times I think, I never really felt it when I knew I wasn't her favorite at times.
As a parent or if you ever become a parent would you or do you have a favorite?
I don't think it's one of those things you can help, but I'm sure based on behavior, and LIKE is NOT the same as LOVE. You can LOVE someone you don't like or like what they do.