As of the selected ranking year, Mark Ruffalo and Robin Williams form a comparison shaped more by career pattern than by any single credit. The biggest-hit category sharpens the box office contrast, especially because Mark Ruffalo's leading film creates the stronger single-release benchmark.

Commercial scale is another meaningful divider, with the career domestic box office measure giving Mark Ruffalo the larger theatrical footprint. Overall, the head-to-head score leans leans toward Robin Williams, but the strongest context comes from the categories where the gap is clearest.