Hmm, after seeing what Goku’s “I’ll give it everything I got” against Buyon, I don’t think Metallic is too far off from Goku’s full power.
Bora gets beat by Tao much easier than Goku did, so we know Bora is weaker, but this is also a powered up Goku from before.
Its hard to tell but I’m thinking Bora is probably a bit stronger.