Hulk does not have the capacity to beat Superman when it comes down to it.
I don't understand why that's so hard to fathom.
His strength is unlimited, but so is Supermans.
Speed? Superman wins.
Long range attacks? Superman wins.
Intelligence? Superman wins.
Combat experience? Superman wins.
Etc, Superman wins.
I could list any random comparison between them and Superman is pretty much going to win all categories.
That's why he wins.
That's why Hulk will always lose.