Amazo win even against the Hulk.
Amazo can copy planet moving dimension shifting powers.
I don't see why he can't copy the Hulk's powers,plus he is already as strong as superman,mm,ww put together.
It would be a goof fight if he allowed Hulk to stay in this dimension and didn't transport him.
Hluk would keep getting stronger unless Amazo used the strengths with the speed of light or half-the-speed-of-light to knock Hulk out before then.
This fight is easily Amazo, even if Hulk getts stronger.