Superman.
Reasons:
(1) There is not such thing as infinite anger to reach infinite levels of strength. Even in wild animals: tasmanian devils, wolverines, etc. that are known for their bad mood even attacking animals that could kill them. However, the anger reaches a peak and then becomes fear, frustation, or just disipates etc... OK is comic books, but no one's and nothing's anger is infinite.
My guess is that, assuming Hulk could take a few punches from Superman without being knocked out, he would get angrier, for a while, given Supes a good fight, but eventually he would get frustrated or afraid to see everytime he punches harder, receives a harder punch from Superman. Then, no more anger, frustration has made its entrance, and bye bye strength. Or it would happen what happened during WWH, against the Sentry, where both of them returned to their human forms having consumed their "juice". (Supes source of energy is infinite as long as the sun does not goes red or super nova in millions of years)
(2) The strength given by the sun vs the strength given by anger???? c'm on! 😮
(3) Superman already have an "infinite" level of strength. No need to get angry.
(4) A hit by Superman, most likely won't get Hulk angry, would knock him out instead. This is not Abomination or the Thing we are talking about.
(5) Even if Hulk had the potential to eventually reach Superman's level of strength, that's not good enough. Superman could end it halfway or less than that.
(6) In a punch what is important is momentum: mass x velocity. A single punch from superman using superspeed (which Hulk doesn't have) and bye bye hulk.
(7) I know we are talking about strength here, but in a fight, I can see 20 to 25 different scenarios, in all of them Superman wins.
Summarizing,
Don't get me wrong, Hulk is really strong, might be the strongest there is in Marvel Universe (debatable), but to reach a level that is comparable to Superman's he must hypothetically withstand Superman's punches and get consistently angrier for a undefined, but long amount of time, and I don't think that could happen because:
(1) After a long time, his anger would turn to other kind of emotion, such as frustration or fear
(2) Impossibility to withstand indefinitely a beating from Superman.
(3) Before reaching a level of strength comparable to Superman ,Hulk would turn to his human form or being knocked out, having depleted his energy.
(4) Superman would notice the increment of strength as Hilk's anger raises. He would put an end to the fight before Hulk's as strong as him, using any combination of his multiple powers and skills, which by the way, are the key to Superman's victory in any scenario in a fight with the Hulk: Versatility.