If I was Batman, I knew all his stuff, but kept MY personality: I would not play nice with psychopaths. And I would also use lethal force. Guns, rocket launchers, you name it. The joker would be first to go.
People would be more afraid of my Batman than the Dark Knight. The comic books would end and there would be no more Bat comics to sell, because I would take down all the villains lethally since I know they are going to escape prison like it's a vacation camp. The city would be free of super villains for a while and then I would retire.
How about you?
Oh one more thing...I would definitely date and possible marry Wonder Woman or some other metahuman...no problem there.
For what it's worth, Batman don't act like any normal man would. Not at all, he acts less human than superman.