Any costume that still has the yellow octave is fine by me.
Although revisiting this now, I gotta say I was never entirely happy with bats getting so effortlessly trashed by the Predator in his original guise..
Now I'm not saying that Predator shouldn't have won that fight. As Bats clearly doesn't have his ledgendary 'prep' factor kicking in their first encounter. But still, given how often he's fought the likes of Killer Croc and other super strong, animalistic superhumans, I would have thought he wouldn't have went down quite so quickly..
He actually does much better against the Aliens in his first Dark Horse crossover with them, which I think I actually enjoyed more..