SS is irrelevant. There's too much power there for Galactus to take on... Spectre, Phantom Stranger, Alan Scott
Quick Question: Are anyone you listed there Earth Bound?
If you mean, are they permanently based on Earth... Alan Scott certainly is. Not sure about Spectre and PS. But, they're on the image provided by the OP for the DC Earth team, so I'm assuming they're in this battle.
earthboundˈəːθbaʊnd/adjectiveadjective: earth bound
- 1. restricted to the earth."a flightless earthbound bird"
No they're not restricted to the Earth.
They can't be used then.
I think the only reason OP had them in the picture is because it was a big picture with lots of "heroes"
if they cant be used then almost none of the other characters on the OP's picture can be used. I say "almost" because I dont know enough about Swamp Thing to know whether he's limited to existing on Earth or not. But all the others can leave Earth, and hence are not "restricted to Earth".
So either the OP meant "earth bound" as being heroes from Earth, or he wants a fight where Galactus is fighting no one.
Earth team wins.