Okay, well let's not get into that perennial dick waving contest. Truth be told, they both have the hardest job in the world. Cops have to see the worst of human behavior, like parents who beat their own little boy to death, after burning him with cigarettes, while firemen have to do CPR on homeless people who haven't had a bath in 6 months.
Usually, my group trains the cops in anti-terrorism stuff; but this week we trained the firemen. We helped them with urban search and rescue, by setting up a scenario where there are multiple radioactive hot spots, while they search for, and rescue people after major disaster e.g. an earthquake.
The main point of our being there was to make them comfortable with their radiation detection equipment, and to feel comfortable in a radioactive environment, while rescuing the severely wounded. They had student firefighters (I keep saying "firemen" but there were 3 female fire cadets) who lay inside various "collapsed structures", and the urban search and rescue guys practiced using snake cameras (fiber optic scopes) and cutting through thick, hardened concrete, to get to them.