Harden is not on the same tier as Curry IMO. Curry isn't a 'scorer that only plays on that side of the floor'. Neither is someone like Kevin Love.
Curry plays 1 side of the court and turns the ball over a ton. Top-10 for sure this year, he is a player I see who will drift in and out of the top-10 year to year.
PG is going to be a mainstay as top 10 for years to come, if not top 5.