My parents showed favoritism, particularly my mum. And me too, I am the least love.
So, I do not do that to my kids. Having said that, I love them in different ways and discipline them differently sometimes. Purely because of their temperaments and personalities.
Successful parenting is founded on successful relationships between spouses and relatives. We must not neglect our spouse while we focus our attention on grooming our children to become the best they can be. Discuss relationship issues here.