Both have great chins and punching power, but no one punch KO power. They are very similar fighters! Who do you think wins? Boxers nowadays are way better compared to during the Klitschko era.
Well if boxers nowadays are way better compared to the Klitschko era then you just answered your own dumbass question.
Prime Klitschko gets decisively taken apart by the Pole and is embarrassed by the embarrassing body. Adam does some impressive movement and flicks his feet back and forth with shades of Ali He proceeds to channel the force of a Prime Mike Tyson and leaps into a huge Left hook that catches Vitali clean and KOs Cold