Well, pretty sure Goku is a god, while Thrall, even when he was filling in for the Earthwarder, was never a god or anything remotely close to it. He's just propped up as like one by a community who doesn't understand the lore they read.
Even if Goku was just in SS1, that's still far stronger than Thrall, whenever. Thrall's just a dude who has a really good connection with the elements. Most particularly earth. Goku's actually a powerhouse who can destroy shit without issue... and even in SS1 he's stronger than someone who can blow up planets.
So Goku in a landslide.