Heavily disagree. Tobirama can dispel the slug via any source of damage. That negates half your reasoning right there. He materializing water from nothing with one seal. What will Tsunade do against an instant Tsunami? The slug will not be able to evade a thing. He was on par with Izuna in CQC so even though she outclasses him in strength, skill? Hardly. He also has the sword of the FTG. Tsunade will go limbless trying to hit him and she isn't healing/regenning fast enough for Tobirama not to piece her up. The acid will also not eat thru water. Only mix with it so Tobirama can use almost any shield of water to protect himself while the "jounin" are meat shields. Any prep time given to him, Tsunade loses. It took two of the most powerful techniques in existence by two of the most powerful shinobi in existence to break and disable the sword. Katsuyu gets pieced by it.
Tobirama claps.
I don't understand the reasoning behind the first line.
And i suspect neither do Manda, Orochimaru, Nagato and many others - all of whom have superior blades and elements to Tobirama.
I know not of these Tsunami you speak, but her taking of hits from V4 Uchiha Energy Armour makes me think she can easily handle that.
I know not of the cqc skill of Izuna, but that he possessed eye powers while she has body powers, that she lived her entire front line life off of cqc as well as that she scales close to V2 RK while he scales below Minato, has me highly skeptical of it.
I suppose the water should push back the acid in a direct confrontration.
I know not of this FTG Sword you of. At least, of such legendary stature and power as you speak of.
In both our threads, i have more to say, but i want to deal with direct matters first.