At this point in the rankings, Helen Mirren versus Kevin Costner is best read as a compact career snapshot rather than an all-time verdict. The category score gives Helen Mirren the broader edge, though the result remains a comparison of career outcomes rather than personal popularity.

The biggest-hit category sharpens the box office contrast, especially because Helen Mirren's leading film creates the stronger single-release benchmark. The comparison therefore points leans toward Helen Mirren, with the most meaningful separation coming from the highlighted career measures.