A is much faster than Tsunade and has more than enough strength to do her damage, while she has very little chance of hitting A. Nagat had just wrecked the whole of Konoha and defeated/killed many of it's army of shinobi and then fought SM naruto w/ toad summons and info on his abilites. he still won. Then he had to battle the Nine Tails while in his weakened state.. Tsunade on her best day could not match that feat.
A took the least damage when compared to the others, Tsunade reacting faster than the man with the reflexes to match the Yello FLash is PIS at its best. She could not even defeat Kabuto and had the worst time with Oro whom she beat on... Her strength did not help her at all with him... A has been said to have Bijuu level chakra, this alone makes him a level above tsunade.
A might be faster,but he needs to go cqc to hit tsunade,and she is maxed out in taijutsu,meaning her chances of hitting him once is quite good,his strongest moves in v2 are his chop,which manages to crack ribs of sasuke's ribcage susanoo,and legdrop which gaara stopped. Tsunade can take those without much trouble,and she is a raiton user,as darui said,sasuke being a raiton user gave him higher resistance to raiton attacks,so she has her senju uzumaki heritage which gives her a very strong body,coupled with her regen which took yasaka magatama to the face and brushed it off and her raiton element which gives her a heightened endurance to raiton element,means the raikage would have to do a lot to hurt her. I never said tsunade could match nagato,i said that tsunade chakra transfer tech saved shinobi that might not have been revived by nagato,as many more would have died if she didnt heal them.
A took the least damage,but was still knocked out like everyone,that's actually a let down than a feat compared to tsunade who took far more than the others,was still awake,still had the chakra to summon and talk all after her SOH began to run out,due to lack of chakra.
Tsunade reacting faster than A might be PIS,but not reacting faster than mei could form handsigns,her fight with kabuto was her first fight in 12 years,and she hadnt trained at all,kabuto was said to be the same power as kakashi,and he then took pills to further increase his speed,yet tsunade still overpowered him and he was forced to use his blood trick to win,her time with sakura in the 2.5 yrsbetween the timeskip is probably when she got back on track with her powers. Oro tanked a tbb,he was cut in half and he laughed abt it,him tanking that isnt much of a surprise.no one even comes close to oro in that department.
A was said to be bijuu level,tsunade healed an entire village,healed gaara and onoki,used SOH which drains her chakra very fast,healed from several injuries,fought multiple susanoos before her SOH began to run out,still managed to give onoki enough chakra for his super jinton,got cut in half and placed under a tree and took by far the most damage,still had enough chakra to wake up,summon a boss summon,and talk. That definately puts her in bijuu level chakra.
It's between Mei and Gaara for me
not even gonna bother with this.