Strongest Marvel Hero?

Hulk's strength is potentially limitless because of his anger, so he would be the strongest hero in Marvel. Other than that I'd say heavy hitters like Thor, Sentry, Hercules, Blue Marvel, Juggernaut etc. are about the same and there is very little difference (if any) in terms of their strength levels.

I would say Sentry, Silver Surfer or Hyperion, Thor is up there too

This. Followed by Blue Marvel, Hyperion, And Gladiator.

Hulk World-Breaker and different versions of him all vary in power and snarts we need to break it down like that for him

Silver Surfer could wipe the floor with Hercules/Sentry/Hyperion/Hulk/Thor. Maybe even multiple of them at once.

But as far as bench press strength, probably Hulk when he's really angry. Him or Hyperion/Gladiator/Blue Marvel/Sentry (All kind of the same).