10. Batman - Batman: Arkham Knight
Batman's one rule is that he doesn't kill people. A steadfast mantra that stops him becoming just as bad as those he captures, it's the reason Joker never aims to kill him, as he brings order the Joker's chaotic nature. As both player character and hero, there are rules in place to strictly stop you from ending someone's life. Sometimes the odd goon will fall over a railing, but that's not intentional.
However, when the Batmobile gets introduced, all that regard for life goes out the window.
Sure, Rocksteady coded it to shock people that get too close, or fire non-lethal rounds to knock people out (with the latter being the same rounds that tear mechs to shreds), but regardless, we've all ploughed right through squads of enemies, and they clearly didn't ALL get out the way.
To suggest The Dark Knight has his mindfulness about him at all times is also absurd, especially when chasing down Firefly on his pyromaniac rampage. How is Batman going to tell the difference being a speed bump and an unconscious body when he's sliding around corners?
"Because he's Batman" doesn't bring people back from the dead.
Questionably sharp Batarangs is one thing, but a fully equipped mobile tank is something else.