No, I don't think he would be Iverson. Much better play maker and shoots a higher percentage than Iverson did. Parker scores a ton of easy baskets and shoots a very high percentage around the rim. As I have heard even our opponent's broadcasters admit, he is one of the best finishers of all time, especially in traffic.
Now, could he lead a team like the 2007 Cavaliers to a championship? No, but neither could Lebron James, and he has the potential to go down as the greatest player of all time if he continues to improve. Parker's scoring numbers would go up if he didn't play with two HoFers like Duncan and Ginobili who had the ball in their hands a lot. His assist numbers would go up from not sharing play maker duties with Ginobili. We are seeing that happen now.