Comparison:
Thanos beats Surfer to within an inch of his life and has to give Surfer some life force so he can survive or whatnot
Hulk hits Surfer with 'all of his strength' and Hulk starts shaking him because Surfer is completely unaffected. Surfer then KO's him with his board.
Also, when Bannerless Hulk was beating on Surfer pretty much not fighting back and caused no damage, and even got tossed around when Surfer actually did something.
etc
There's also the time a 'low level' Thanos clone one-shotted Hulk, but that wasn't physical...
As well as him going to smash Thing/Hulk's head into each other.