Unless you are judging on longevity then it goes to Austin no matter what your criteria is. Better all around talent? Austin. Who would win in a kayfabe prime vs prime match? Austin. Who was the bigger draw? Austin. Bigger star? Austin. Sting is great but he isn't on the top tier level that Austin, Hogan, The Rock, and Flair are on. He comes in at the level just underneath those guys.