If you think Tsunade has a remote chance in hell of winning this, you probably have brain damage.
You of all people really shouldn't be calling people out for stupid arguments, lol.
Why is this, the third raikage has 3 great assets.
His speed, his tough body, and his stamina.
His speed is neutralized by an all encompassing attack, that has backup measures in the form of reverse healing as he cannot reach Tsunade without stepping into Katsuyu.
His defensive capabilities are neutralized by both means of attack laid out as acid attacks with corrosiveness as opposed to blunt force trauma, and medical ninjutsu doesn't require she physically hurt him or even come in contact with him. In terms of stamina, she's a beast in her own right. After fighting for hours with byakugou on after refilling the chakra of 3 kages.
Everyone walks in expecting this match to be brute strength vs brute strength and with full knowledge it's unlikely and unnecessary.