It depends really
Like UNSW COMPUTING just said, there's flexible first year, but I'd say that either electrical or civil are more "general" insofar as they can teach you cross-discipline skills. Electrical engineers learn how to code, so they can be software engineers if they undertake the personal investment to do so. Civil can earn you a place in the mining sector if you've done enough junk with it. I'm not sure but there is a possibility being a chem engo will allow you to work as a petroleum engineer as well.