I forgot if it's leaked or Dustin Nguyen posted the concept art of her superhero identity, but when people saw it they immediately assumed she's gonna be Nightwing, and with Nightwing recently unmasked, murdered, revived and make secret agent in stories no one asked, people flipped, as she hasn't earned an identity so personal to Dick. Turns out she's gonna be named Bluebird.
Fast forward recently however, Snyder admitted that they wanted to make her Nightwing, but fan backlash changed their mind
Entirely different based on the era, the writers, editors, a clash of intention between writers and the different tone of the books
Like if one writer is focusing in one relationship, the other in the others, but it's portrayed differently because of the tone of the story or the writer's own interpretation, the impression became that he cares more about one than the other.
The most common example is he looks like he cares more, or at least, have fun more with people's kid and the Justice League than his own because Batman book is dark, dangerous and obsessive, he sets this high standard and harsh for his kids, but because the League books are more superheroic and fun, he can appear kindly or having fun with the others.
I like everything happened too.