Those energy blasts would hurt, I reckon. He can prolly knock em around even with the shields. At least the small fighter craft. But get hit once in a while due to the sheer number of ships. At the very least force some to crash some into mountain sides/buildings. Crashing into a jet seem enough to shake the alien ships a bit. I bet Supes crashing into one would toss one pretty hard. But it would hurt Supes a bit, too. Strat seemed enough to disable an alien fighter (Will Smith tricked one to crash on a canyonside IIRC). But with so many ships, he's gonna wear himself down. He loses eventually, taking several small fighters down. But that's it.
I personally can't see him going after the big ships and doing much good.
No way he's getting hit with the main gun, tho.
Originally posted by golem370
Could get when they went to fire the main gun.
They only really fired their main gun to destry ground targets, tho. And was it ever established that their shields went down when they fired their gun? As far as I can remember, it was only vulnerable when the shields were all already down after they took out the mother ship.