I've seen a lot of people hating on Giorno for having "no personality" or for being "too perfect." I don't see him like this at all. He has the same kind, selfless, righteous personality as Jonathan, as well as the cunning, sly aggression that Dio had. Just like Jotaro, he isn't very good at expressing his emotions, and even then we can see these traits shining through at various point in his part. Also he's pretty.