Hanzo is said to have unsurpassed speed on water. So water blitz GG.
Hanzo's Salamander poison breath one shots, unless breathing isn't required for Konan in paper form
Breathing isn't the only way to be affected by his poison. Contact to skin absorbs and affects you as well (just a bit slower to knock you out fully.)
Sakura showed otherwise....
Hanzo and Sakura fought? Hanzo and every other poison are all equal? Damn.... Oh wait! Kakuro who literally held his breathe went numb instantly and soon after collapsed? Yes! Kankuro indeed did not breathe it in yet was affected! But please show me scans of Sakura ever seeing hanzo ever.. I'll wait!

Hanzo and Sakura fought? Hanzo and every other poison are all equal? Damn.... Oh wait! Kakuro who literally held his breathe went numb instantly and soon after collapsed? Yes! Kankuro indeed did not breathe it in yet was affected! But please show me scans of Sakura ever seeing hanzo ever.. I'll wait!
Paper bomb explosions disperse poison cloud