Peter has more sheer power Wlad's punches are technically superior to Peter's but in terms of raw power Peter's got the edge.
Sam Peter is a huge puncher, no doubt about it. However, Wlad's punches are much faster and more explosive. Based on that, Wlad probably carries the harder punch. Sam Peter would benefit by working on his technique, but that's just a no-brainer.
I'd say Peter's overhand right is a mighty heavy punch... he can get you out of there even you try to block it or if it hits the top of your head... Klitschko drops people with his right hand because he lands it accurately on the chin or jaw.
I dont see how Peter's power is overrated. He dropped Wlad 3 times (although i thought only 1 was legit) and dropped Toney, as well as hurt him several times. NO ONE has hurt Toney in his entire career like Peter did. I think his power is evident in all his fights and he has a LOT of power. Potentially on par with Wlad, but Wlad is a much cleaner puncher.
Don't be ******ed. Scam Cheater's only knockouts are against complete BUMS and he his other knockdowns are from hitting behind the head.
I think Wlad is the bigger puncher in both technique and power. Thats not to say Peter has little power of his own, I just don't think he's on the same level with either of the Klitschkos.