Page One is being treated as Oven in this arc aka the punching bag.
First Sanji, then Nami and Usopp, now Big Mom.
Yet, Oven was stated to be the most robust among Charlotte children. Even without the official statement, his physical build already looks like it compared the likes of Cracker, Perospero and Daifuku.
But Page One seems is not the tankiest among Beast Pirates. Forget Kaido and Calamities, he probably isn't the tankiest even among Flying Six. From the build, racial, DF, and armored troops he leads, Sasaki seems to be the most tankiest among F6. Built bigger than Page One in human form, fishman, triceratops who have thick skin, and the leader of armored troops. Gonna be hype when Zolo finally defeats the tanker among F6.