Well im reading I'm enjoying the plot mostly and where its going. Trying to think where it will go in the future related to a character or the entire story. (Steven universe theories are my latest adiction)
But its the big impactful moments that stay with me longterm. A lot of people are saying they love a characters development, for me I guess its more about the emotions of those key moments of "oh snap" that keep me interested... maybe those moments in my mind hrlp make the character?