I don't think Vitali is a much lighter hitter than Wlad. His hands are slower, and his style less fluid, but he laid out Kirk Johnson and Danny Williams with some very heavy handed shots.
The key to getting Wlad is very simple - you have to land a clean shot to his chin, which is much easier said than done. You have to wait til he's fatigued (e.g. Brewster) or you have to be tall and good (e.g. Sanders). Lennox is the latter in spades (especially in his prime). I see this going the way of Lewis-Golota (or Sanders-WKlitschko) - i.e. it ends early and suddenly. Lewis KO2.
Vitaly is much lighter hitter than his younger brother, believe me...and i don't believe, that lewis can survive first rounds punches...altought, lewis chin is not that bad that someone say'ing. Lewis takes a lot of hard punches in fight against vitaly in a couple first rounds and i dont think that he can survivor, if the puncher is wladimir...
If he can take Vitali's punch he will be fine with Wlad's.
Vitali has 35 w's and 34 ko's.
Wladimir has taken much better opponent than vitali, and much more fight's..
..but, can lewis really handle wladimirs speed?and He is much more better overall boxer, than Briggs or Golota...and Lewis get a lot of bunches from vitaly in early round's, who is much lighter hitter than wladimir........