Bailey > Kluivert > NeresTo be honest I can't express with facts why, but I think Kluviert is the long term Better prospect. His style of dribble is more effective, his shooting is more refined... Neres is currently further along and he is currently more productive. But I sense his style will be less effective against more competent opposition's.
I'm also not a big fan of showoff dribblers ( perhaps that clouds my judgement). But I'd take Kluviert potential over Neres at the moment.