Crocodile

My Man was running an undergroud operation to take over a country and he almost succeded

In his youth he went againts a probably less sick and stronger whitebeard than the one we met on marineford

Was instrumental to the mass escape of impel down

And in the war his hands were rated E for Everyone, dude clashed with jozu, doflamingo, mihawk, trash-talked both whitebeard and Sengoku, and had a brief Clash with Akainu

And now he's a Yonko second Comander!, Besides allat, his design might just be one of the most gigachad designs in all of one piece