Anyone who rates Vitali higher than Wlad needs to start looking at resumes. Vitali has beaten a load of bums, and lost to the only two good fighters he faced. Wlad has beaten a long list of top contenders like Eddie Chambers, Ruslan Chagaev, David Haye, Sultan Ibragimov, Chris Byrd. These are all guys that Vitali wants no part of. It's easy to look great against bums. Resume is what counts.
What about Sanders ? Peter ? Purity ? Even in his one non-asterisk loss (TKO 6), Vitali had a better performance against a better boxer than Wlad ever faced than most of Wlad's winning performances. Wlad is undoubtedly more skilled, greater resume-wise and probably a top ten, which Vitali clearly isn't. But Vitali is tougher, meaner and has more heart and jaw. H2H, prime Vitali was better than his little brother.
How has Vitali more heart? Name one fighter that came back as an ATG after 3 embarrassing KO losses, while everybody including his own brother told him to give up.