Batman is just as unwilling to kill as Superman.  That's canon.  :P<br/><br/>If he were willing to kill he'd have wiped out at least some of the killers in his Rogue's Gallery rather than just send them to Arkham so they can escape and kill again and again.  The Joker is the biggest example I can think of... how many people would Batman pre-emptively save if he was willing to finish the Joker off once and for all?<br/><br/>Not that I would condone such a thing.  In my opinion it would make him just as bad as the villains he fights.  I'm just saying that despite different methods, Batman and Superman have the same code against killing.<br/><br/>Besides, we all know that Thanos of Titan is far cooler than Superman and Batman put together.   ;)<br/><br/>Examples of badassery:<br/><br/>(http://i180.photobucket.com/albums/x158/Punstarr/thanos5_2.jpg)<br/><br/><br/><br/><br/>(http://i180.photobucket.com/albums/x158/Punstarr/ThanosSurfer.jpg)