Naruto - better for GNW / Bonds

Sasuke - better for 1x1 team fights

Generally Sasuke is worse then Naruto atm on China (but obviously there is a little bit different meta on China)

I think that answer on your question is: Madara 6 tails is better

well, sasuke doesnt have mystery with interruption like naruto, sasuke has suppression of armor and i think interruption is better

and he doesnt have chase with immobile or chaos or anything that stop the mysteries of the opponent ;-;

naruto has chase with immobile + remove shields and buffs

naruto has standard attack with decrease cooldown for his mystery, sasuke has paralysis but the paralysis isnt good as decrease cooldown

naruto has immunity and evade and self healing to make him tanker, sasuke has super armor and absorb chakra with chance to chaos for tai attacks but it will be useless if you are fighting someone with nin moves, naruto is better here also bcuz he have evade, he wont get dmg from mysteries in the second round and he has heal, sasuke will get the dmg and he cant heal himseaf

in my opinion naruto is better than sasuke , that made me very sad bcuz sasuke is my favourite character T^T