Hashirama and Tobirama's physical strength

[Micho22]

Hashirama and Tobirama are famous for other powers and jutsus ( just hashirama and Tsunade have the same ability regenaration with no hand seals)
It is stated in the manga Tsunade is unsurpassed by physical strength

 

[YellowFang]

Dat Tobirama broke a wall by just placing his palm on it... That's where Senju's are on top with huge reserves of chakra and stamina alongside too...