I believe sasuke would be something special. Fron what we saw at the summit he molded amaterasu around susano which gave him a defence.
Now amaterasu burns for like 7 days. If sasuke can mold it around himself kinda like A raiton armour, that would be one the best defences out there, because the only chakra it would take is what sasuke first uses. After that amaterasu will burn by itself and doesnt need chakra.
This would then serve as sasuke's defence instead of relying on susano which takes alot more of his chakra.
Basically imagine amaterasu alone around sasuke, like how raikage has the lightning armour around him. In the raikage's case it takes his chakra, in sasuke's case it doesnt. It burns for 7 days