It be really funny to see them against lil kids. The only person that would even try and might hit them would be kohonahamaru. I don't think we would quit or run.
Well they are obviously far above Kage level by now. But officially they are still Genin.
It would honestly be the funniest thing if they took the Chunin exams again. Strolling through the forest of death together... Knocking out 12 year old genins.... Then Naruto gets bored and decides to fire a Bijuu Dama... "WHAT THE HELL HAPPENED TO THE FOREST!!!!" And then Sasuke laughs arrogantly like he always does.