I don't think Wlad hits harder than Vitali. Better technically and faster, I think so but I think that Vitali is a bit stronger. Also, as it is possible to flat down Wlad and not Vitali, I would tend to say that at this moment, Vitali's more dangerous. I wouldn't fight any of the 2 brothers for obvious reasons but if I absolutely have to pick one, I chose Wlad because a lucky punch could always save me, not with Vitali.