Don't know if it's really being fair to Flintoff to have to compare him to the spectre cast by this hypothetical superhuman Ben Stokes you're conjuring here.
I don’t think he is superhuman but I think because Flintoff more or less led the attack for a while his bowling ability is embellished somewhat. Stokes has never ever been given that role because he’s ALWAYS had two career long new ball stars ahead of him.
But he shows enough during those regular spells where he’s called upon to do the donkey work and find a wicket where others can’t, to suggest that if he was bowling first change and asked to do the role Flintoff was, he is probably capable of doing it.
On the flip side if Flintoff was called upon to be a top five standard batsman I don’t think he could