at the very least it confirms something a lot of people here wish to deny. and that is that The Hulk, was created to be "the strongest one there is".
he is the personification of overcoming strength, whatever the endeavour, he has the strength to rise to it and rise above it...
except Stan never came up with Superman and the guys at DC obviously lost any and all touch with good writing and instead became messianically driven to make Superman truly super, rather than just leave the super as quaint 30s hyperbole. so Superman's strength, though initially not all that impressive, has now got this amping quality to it too (though I doubt it increases over the course of a fight, doesn't he need to sundip or whatever), so if Hulk's got ahold of Superman, there's every reason why, he should be able to tear him apart...
anyway, the simplest way to see it is that Hulk could not catch Superman if he's flying in near earth orbit, but superman could heatvision him, could chuck asteroids at him and consider all manner of ineffective attacks (as Hulk would be resilient to them all - durability shoots through the stratosphere as his blood boils up).
so ... most likely a stalemate or a bfr victory for Superman.