While wrestling-wise, Rock is not on the level of Hogan, his movies have blown away anything Hogan has ever made.
Neither are any good. The Rock has not got the global crossover into film yet - and I don't think he has the ability to achieve it.
But it depends what group we are considering - if 100 people on the street were asked to "name a wrestler," Hogan would surely be mentioned more than any other name.