Hey, just remember Batman's killed them all.

Seriously, I haven't read comics since I was 12 and they were out THEN. Batman's owned all of them.

Except for the Predator...once, when the Predator ripped Batman's head right off after sticking him. But time travel was involved, so in the end, Batman still got the best of him.

That Bruce Wayne...

Edit: On-Topic...I think Robocop would outsmart the Terminator, so...Robocop.