Dude, you are psychic !
I just posted a short epic about Batman's homicides in B v S's warehouse fight compared to the Daredevil fight scene.
Here's what I came up with for the warehouse fight.
''ll do a quick comparison for the two then. Here's a link to the Batman scene;
https://www.youtube.com/watch?v=MyVPh3Usrho
Here are some of the nastiest hits (not all of them though):
at 2:29 Batman kicks the hanging guy into the grenade guy = Fatality !
At 2:39 the guy with the knife gets slammed into the ground, probably not dead, although likely permanently crippled.
2:47 slams the guy down on the crate, he's probably seriously concussed - but I've seen worse Parkour falls, so most likely alive.
2:48 Batman hurls the crate, which slams the thug against the wall, he's probably dead or fatally injured (subdural hematoma ?
3:12 slams thug into the ground head first, yeah, probably killed that guy or permanently crippled (although the bigger problem is the knife that Batman deflected into the guy's thigh, if it nicked the femoral artery he's going to be dead really soon from blood loss).
3:15 Batman punches the guy in the face 3 times while holding his head against the ground, hard to tell, but possibly enough to kill him.
3:49 Batman puts the guy through the wall, not sure if its enough to kill him, but probably broken bones and internal bleeding.
4:40 Batman fires a round into the flamethrower which then barbecues the guy holding it and the guy originally holding the M-60.
A quick tally gives us 6 or 7 likely fatalities, although everyone got seriously injured. But that's just a quick look, anyone want to check my maths, please go ahead.
let's add to that at least 3 guys he strafed in the Batplane.
Then there's the guys in the batmobile chase, hmmmmm maybe 4 or 5.
Okay, so that's a pretty good body count for Batfleck around 15 people.
Bale's body count ?
Batman Begins (well do we really count the ninjas when he blew up the monastery ? At least we should count the Ra's Al Ghul body double.
Then later, he doesn't save Ra's for real - but arguable whether he was really the cause of that death.
TDK..... definitely kills Harvey Dent. But that's probably it.
TDKR, hmmm... in the final chase scene Bats kills Talia's driver (and Talia really, as he causes the crash) plus the tumbler drivers who got hit by missiles.
So, I would say that Bale's bodycount for three movies, is less than Batfleck's for one.
Keaton is a different story though.
In Batman he kills the Joker, and strafes a bunch of the Jokers' goons - and then there's Axis chemicals ( I count four goons there). Maybe around 10 all up for Batman 1989.
In Batman returns he kills the weightlifter and the fire breather at the least.
Clooney ? I kind of blocked out that film, so I honestly can't remember.
Kilmer..... anyone ? I don't know, I haven't seen Batman Forever in ages. I guess he effectively kills Two-Face, and the guys in the helicopters and cars (Two-Face's thugs) who crash during the earlier sequences in the films.
Maybe somewhere between 3 and 10 people ? Anyone, help me out here.
Anyway, in summary I would say Batfleck kills the most people in single film - although I think Keaton has the most kills overall.
Kilmer might come third, and Bale's Batman can hold his head high, as having killed the least people over three films !
This was a pretty quick survey, so how's my math ? Am I close ?