Did you watch a 24 year old Iverson play or a 33 year old Iverson? He was a good shooter facing the toughest team defenses and the best defenders night in and out. No one else on that roster had to be guarded. And yet he carried them to an NBA finals and he won an MVP. I love Manu, I do. He's one, if not my favorite all time players. But he was no Iverson and even he would admit it. Now would the Spurs have won les with Iverson? I don't know. He didn't seem to be able to coexist with other scorers. That doesn't take away from the fact that he was an elite scorer that I saw torch Bruce Bowen, MJ/Pippen, whoever. All for a guy probably less than 6 ft tall. He was no doubt impressive.
Manu was a great player, but he was never in the MVP discussion, and I really don't think he could take that same 76er team to an NBA finals by himself. We'll never know because he always played with the big 3 and though his contribution to the big 3 was huge, at the end of the day, he was playing with a guy easily in everyone's top 10, if not Top 5 of all time great players in Tim Duncan and Tony Parker is a historically decorated player too.