time, old age, retirement all kidding aside Vitali probably retires on top if not he may fight 1 more time and he will beat anybody out there Wlad's stuck, he cleaned out his era and is waiting for a new era of contenders to emerge some guys are ready and capable fighters who would be viewed as a good fight but they refuse or wait for the WBC to become available i think some fighters in the division are good or great in certain categories but Wlad is the whole package i dont think anybody out there is dynamic enough or well rounded enough to win of course he could always get KO'd by somebody who gets lucky or desperate, but i dont see him losing like Tyson and Lewis did because he didnt train as hard or wasnt focused Wlad had the benefit of losing and being embarrassed early in his career so he could learn and always be in shape and always be mentally prepared there are good fighters out there but they dont compare