I know I've been using Grant Morrison's most recent run on the character to showcase how awesome he is, but Morrison can get to the root of who Batman is and show how brilliant he can be without undermining those around him. Batman had at least one crowning moment of awesome in every arc-- perhaps issue-- of Morrison's Justice League of America run, and so he knows what he's doing.
I'll get to JLA later.
Anyway, in the run up to Final Crisis and the god-bullet incident, and after the poison-cup debacle, Batman was dismantled by the Black Glove, a group of very rich, very influential individuals that dismantled Bruce Wayne, took away his life, his family of crime-fighting side kicks and butler, and then just... shat on his identity. Of course, Batman was ready for this-- he was ready for the Dark Master, after all, and he created a secondary Batman personality to run "in case of emergency". More on that later, of course.
But in the final issue of "Batman RIP", the Black Glove have won. They've buried Batman alive. So, of course, he's fucked, isn't he? He can't possibly escape! The Black Glove have him buried in the Arkham Asylum grounds, they've dressed him in his best cape, and in a while, when his brain is so oxygen deprived he becomes insane, they said they'd disfigure him to resemble the Joker.
Ho ho, these guys are so awesome, they're so bad ass, Batman doesn't stand a chance.
Batman thinks of everything. Of course he does. And what does he think of being buried alive?
He's so fucking unimpressed. Because he's Batman, he's been ready for this for years. Buried alive? Year One, child's play. Robin could get out of being buried alive. And in a straitjacket? As per my previous post-- Batman can escape anything. He can escape the Omega Sanction, so why should a casket even impede him?
I'm going to let Batman's internal narration do the rest of the talking for a moment. I can't cut this down without ruining the bad ass flow of how Batman's mind works.
He's done the math. He knows everything about the situation. He knows every dimension of the death trap he's been placed in-- he's fucking Batman-- he's been in every death trap conceivable! Even the inconceivable is nothing to him because his archenemy is the Joker! A guy who evolves every few years into the scariest bastard you could possibly imagine! You can't out him in a box because he'll out think you and turn the tables. He's Batman. Anyway...
At the end of his rope, beaten and battered and brainwashed-- no. You can't stop Batman. He's the greatest hero there will be, or ever was. You can pull the Superman card, but he's got all these powers handed to him on a plate. The Flash has his super speed, Green Lantern his power ring. Heck, Wonder Woman is the princess of a race of Amazons living on an invisible island in Greece. Superman hasn't worked for his powers, but Batman, who is the only truly human on a team of veritable gods, is the greatest. Batman is awesome.