User blog comment:12th Supernova/Chapter 841: Humanity/@comment-31.24.227.55-20160929165422/@comment-5398287-20160929223208

Let's dispel the notion that Cracker being in a similar position to Jack means he's at Jack's level of power and fighting capability. From what we've seen, Cracker relies primarily on the element of surprise and his Biscuit Soldiers to fight, and he himself admits that he can't even withstand the pain of a needle prick; meanwhile, Jack fights up close and personal, uses his DF to enhance his OWN combat power, and has completely monstrous endurance. They're the lieutenants of two completely different Yonko and have completely different level of power as a result.