Who would be a good leader for the resistace in Terminator?

They can also use the tech that they have.

Ironman

It makes more sense for captain america to be a leader for the resistance.

John Connor. Specifically this one.

Nearly just 1 minute of screen time, no dialogue and he's the best John Connor there ever was.

I mean though, if we're ignoring that No John= Doom for humanity. Then Cap would probably fit much better here than Batman.

Cap. He's a better leader.

Cap's definitely the better leader, but Bruce is definitely smarter and more tactically gifted. If you can only take one, I'd probably take Bruce from a pragmatic standpoint. If you have them both, make Cap the leader and Bruce more of an advisor/general.