Jugo was better scaled in Naruto, with his reactions to V1 Killer B surpassing Ao being showcased along the V1 RK level bodyguards.
In Boruto, both have underwhelming showings with Ao getting a frog dropped on him while Jugo was not blitzing the world to oblivion. Their common factor is facing Team Konohamaru, who showed more control and comfort against Ao than Jugo.
In terms of abilities, Jugo has his high stats boosted by transformations for pseudo-armoury while Ao has his Water Style and mechanic attachments. Based on his Five Shadows Meeting achievements, I think Jugo can block attacks from Ao and kill him with his energy blasts.
So Jugo should scale slightly higher and has the advantage in powers.