Careful. Some days you just can’t get rid of a bomb.
He’s prepared Batman. No one knows how, he just finds them. 
Nice.
Batman, using his biology/chemistry skills, creates a gas that has two unique properties.
-
It can not be filtered out through Vader’s breathing apparatus.
-
kills mitochondrians (sp?)
Vader, now finding himself completely disconected from The Force ™, is now easy pickings for Ace the Bathound.
“Party on, Wayne.”
“Party on, Darth.”
:: Smacks forehead :: *That’s * the joke that’s been rattling around in my head and wouldn’t fall in place. Damn you, JThunder. You’ve earned my jealousy this morning.
From Aliens, I presume? Thank you, Corporal Hicks.
Don’t be silly, Batman doesn’t have an anti-Force pill in his Utility Belt.
He has a Bat-anti-force pill. Sheesh.
:eek: 
The force is strong with this one.
Yeah, but is this one strong with the force? :dubious: 
My take: Batman would take the pay-the-doorman approach and hire Luke.
Batman would get Luke to keep Vader busy and then take him out, probably sacrificing Luke along the way.
Upon arriving in a new galaxy our friend Bruce Wayne realizes that his wealth on earth is of no consiquence . He doesn’t have any midicholorians so the Jedi giggle at him behind his back.
Even worse everyone has purchased a Boba Fett starter kit so his utility belt is a mere novelty.
His Batman uniform doesn’t even turn heads in this new land of aliens and strange unearthly creatures.
Soon it becomes all to clear that he’s just a plain old humanoid.
As time goes on his stomach begins to growl and he faces a cold hard fact… he’s got to find a job.
We catch up with our hero years later. He has found work as a toll booth operator on Alderan. He’s one of the better employees and they may even promote him next month. He looks up into they sky and notices a bright light. “Hmmm. That’s strange.”, he muses to himself…
THE END
Alternative: Upon arriving in Gotham City, Darth Vader realizes this primitive planet lacks the technology even to recharge the batteries in his life-support suit. Whether he runs into Batman or not, he’ll be dead in a couple of days.
I’m with you, but Bruce does possess incredible engineering skills, better than your average human. I suspect that would give him an advantage. Remastered dialogue of A New Hope:
Imperial Officer: We’ve analized the fighters’ attack pattern and there is a weakness. Should I prepare your shuttle?
Tarkin: In our moment of glory? You overestimate their chances.
I.O.: But sir, there is this… Bat Shaft I’m particularly worried about.
Tarkin: Nonsense!
Ka-Boom!