@RicardoA, post some arguments.
Well, Onoki having intel means he won't be one shotted by Amaterasu. I have no doubts he will be able to survive for a while, but how exactly is he defeating Sasuke?
Jinton is avoidable and with intel on it, its highly unlikely that Sasuke will let him charge up.
To immobilize Sasuke, Onoki would need to get close and touch him, which is not an option considering Sasuke's superiority in CQC.
Rock Golems are easily destroyed by Sasuke's Raiton. On the other hand, they would be useful in changing Susanoo's arrows trajectory, which is the only way Onoki has (no need for hand seals) to avoid this attack.
Sasuke can keep up and its only a matter of time until Sasuke gains the upper hand imo.
When i typed he would fight smartly, i was referring to his use of intel to his benefit, for example, by opting for Shurikenjutsu instead of using Susanoo for defence (which would drain him much faster).
Of course Onoki having intel would most likely push Sasuke to high-diff, but he's still the one who will have a hard time avoiding and countering Sasuke's attempts to finish him off while the younger one has more options and versatility in his arsenal to deal with him.