It's something that probably happens more often than we think.
But few parents ever admit to favoring one child over another.
Now one blogger dad is copping to those feelings and finding himself in the center of controversy.
Buzz Bishop, father of two, wrote a shockingly candid blog admitting that he has chosen a favorite son, and it's stirring up quite a debate on parenting sites.
In the post he says, "if I were to be absolutely honest, my older son is my favorite of the two."
"He and I are adventurous partners in crime, and I can't imagine life without him."
Bishop even admits in a follow-up post, "to me, he's more fun."
"I don't live either of my sons any more than the other, but I do like them differently."
"I'd be willing to bet you're the same."
Online, the response was swift and brutal.
One reader wrote, "that 'favorite kid' part could hurt someone's feelings one day!"
Another wrote, "did you really write that your older son is your favorite? That's horrendous and cruel."
But Bishop stands by his blog posts.
"It's something we all have inside and I'm honest when I write so I wrote about that moment that struggle I have and told the stories about my kids."
See ABC's report here .