Its really difficult to determine a top 10 list based on the change of styles over the years. I'm more of a fan of the AWA and JCP era style of wrestling. So I would be more likely to have Arn, Flair, Magnum, Steamboat, and Austin in my top 10. Someone more of a fan of CZW and ECW would have Necro, Foley, Sandman (Hyperbole but you get the hint).
Even five star Dave has a bias towards NJPW. He may give a match higher ratings based on promotion alone.
By the way, Steamboat, who excelled in NWA, really got shit on in both his WWE runs. I feel if he had a better run in WWE, he would get more of top 10 discussion. The one match with Savage is what most fans talk about. However, his work with Flair is legendary. His feuds with Rude and Austin were amazing. I just wish we could have gotten a Vader vs Steamboat fued for the WCW or even US title.