system
Given the following post, respond as if you're commenting on Reddit:
human
[DC/Marvel] How much crime do vigilantes like Batman, Punisher, and Spider Man actually stop?

How much crime do street vigilantes like Batman, Punisher, Spider Man etc actually stop?

In a day, a month, a year?
gpt
Generally, those kind of vigilantes are working out of areas of higher-than-average criminal activity, so there's *something* for them to stop in a daily (or nightly) basis.

Out of the three you named, Batman probably stops the most crime.  Gotham has a high criminal population, with more than a few dedicated "professionals" causing problems.  Spiderman works a good sized section of New York, but NY is rather hero dense, so he's got a smaller slice of the street mugger/random break-in scene.

But you have to consider the crime they prevent indirectly, as well.  Batman and Punisher work through fear as well as direct shows of strength.  Gotham might have a high crime rate thanks to the various gangs and mob families, but with Batman's reputation of being anywhere, at any time, common criminals are less willing to go rob a joint at random.

A vigilante like Punisher moves around often, however, so he doesn't keep a particular area in fear of his attentions.  When he does strike, he doesn't leave survivors, and he's hitting hard targets, like drug cartels and gangs.  He's having an impact, but leaves a vacuum for more of the same types to move in.  An area he's hit will be quiet for a time, but as reports of his work elsewhere crop up, the criminal elements seeps back in.

To answer your question more directly:  Batman certainly stops several crimes a night, at least.  Spiderman probably stops as much over the course of several days to a week.  Punisher won't necessarily stop individual crimes-in-progress regularly.  He plots out his targets, takes his time, and wipes out as many as he can in one go.  Why shoot a mugger when you can toss a grenade into a room of mafioso?  In a month, he'll take out more than either Batman or Spiderman.  Permanently.