In the Flashpoint comic, we were introduced to an alternate version of Batman. Instead of Bruce Wayne, this Batman is his father, Dr. Thomas Wayne. Due to the Flash altering the timeline, Bruce was shot in Crime Alley instead of his parents. As a result, Thomas Wayne became Batman while his wife Martha Wayne was driven mad with grief from the murder of their son and became the Flashpoint Joker. Compared to his son, Thomas is a darker and more brutal version of Batman who has no problems of killing to get the job done. Witnessing the death of his son and the madness of his wife turned Thomas Wayne into a bitter and constantly angry old man. While Bruce uses high-tech gadgets to fight crime, Thomas uses guns and explosives. As Barry Allen once said, if Bruce Wayne is James Bond then Thomas Wayne is the Unabomber. Overall, I like Thomas Wayne as Batman because he provides a much deeper and darker look at the persona of the Dark Knight.