Do you like Albus Severus Potter name?
Oh, I LOVE the name.
Most people have a problem with the 'Severus' part, and I feel that Harry naming his son after Severus Snape, his bully and arguably the most grey-est character in the series, summarises Harry's character so well.
My boy is the most forgiving person in the entire series. During the last duel he even asked Voldemort, who was the literal enemy, to feel remorse so he would not die (i don't have the books on me currently to quote it verbatim)
Harry Potter is a coming of age story. There's a great reddit thread i once read which pointed out that Dumbledore and Snape have so many parallels. Both were haunted by their guilt because in their youth they took the dark part because of a girl and then later in their life worked selflessly to repent.
Since the starting of the series, Harry sees Dumbledore as the "right" figure, and Snape as an "evil" figure.
Later in the story, during DH, Harry finds stuff about Dumbledore which tarnishes his holy figure and Harry puts him off the pedestal. Similarly, Harry finds stuff about Snape which lightens his dark image.
There's a reason the epilogue was Albus' first day of school. Not James. Not Lily. But Albus.
Albus Severus shows the growth Harry had made. It shows Harry understands the world is not divided between "good" and "bad". Between professors wearing white robes and has twinkling eyes and professors wearing dark robes and has haunting eyes.
So those who say "Harry would never name his son after Severus Snape." Do not understand Harry's character at all.
Albus Severus Potter IS the epilogue. He IS the growth Harry had made.
