So who's stronger, Thing or Hulk? It was hard to gauge from this movie sicne Thing barely did anything.
hard to say exactly due to power creep, and author fiat.
Classically, the Hulk by a pretty large margin.
But even this was before Infinite angry Hulk.
Hulks power creeped over the years with him getting stronger the more angry he is, with no known upper limit.
Hulk also has regeneration. It doesn't come up as often, as not much can actually hurt him in the first place.. but he heals faster then Wolverine.
but then, the Fantastic Four ALSO got power creep. As Marvels "first family", and the power cosmic, writers definitely thought the FF should to the scales.
Sue went from being able to turn invisible. to also being a genius, and able to create forcefields. top tier ones too. 100% unbreakable. able to kill the Hulk, Galaticus etc in one shot, by forming them in their heads.
Johnny went from lighting himself on fire, to burning hotter then the sun, and could accidently light the Earths atmosphere on fire. and destroy the Earth if he wanted to.
Ben. has not actually gotten consistent powerup. but once in a while, they have him preform feats that are well above his old power levels. he is basically indestructible now. probably could face tank Blackbolt, etc. and could match the Hulk most of the time in raw strength.
Reed has not gotten any afaik. only Ultimate reed with "stretchy mind".