Wlad chin isn't that bad. He's a smart guy who refuses to get hit by a flurry of punches and goes to the ground without looking that hurt and stops the other fighter from getting momentum.
Wlad has only lost by tko and always gets a standing 8 count. He also has came back from being knocked down to winning by both KO and by a decision.
lost by tko - officially, but how many fighters lose by KO, even Montiel was TKO'd vs Donaire, Dallas was technically TKO'd vs Price. He was Knocked out, he couldn't even tell if he was in the ring or his living room vs Saunders and Brewster - he was Knocked the **** out, not Out cold, but still Knocked Out
I would think h2h Wlad would murder Ali. Ali doesn't have the power to crack Wlads chin, and Wlad has too much stamina.
A younger prime Lewis actually moved faster. Watch his fight against Ruddock and Golota. The guy was quick.