So it seems as if this really was a lop-sided win for Valuev!  I remember reading how he "easily" beat Bergeron, but then I saw the fight on Youtube and it was surprisingly close.  One could make the argument that Bergeron won rounds 2-8, with Valuev picking up rounds 1, 9-12.  (Of course the judges in Germany didn't see the fight that close.)  I'm curious about seeing this fight, to see if Valuev really has improved, aided by his new trainer; or if he's the same fighter that I saw struggle against Bergeron, and it was more Liakhovich not fighting well than Valuev fighting well.  
As for Liakhovich, he was coming off of a long layoff when he beat Brewster, so I imagine it's more the weight gain, being less committed/ prepared now than he was back then, etc.  And let's not forget that Valuev is a much different opponent than Brewster.  Even a Liakhovich at the top of his game would have a hard time recreating his exciting, action-packed victory against Brewster with Valuev.  If nothing else, he's about a foot taller than Brewster, and an extremely awkward opponent.  
His fight with Brewster was an exciting victory against a well respected fighter at the time.  But, in hindsight, he probably became a little overrated after that achievement.  After all, Brewster was a punching bag for Wlad before Wlad inexplicably gassed in their first fight.  The rematch was an easy win for Wlad.  And Lyakhovich had a tough time with Briggs, who was atrocious against Sultan.  And Valuev was mediocre against Bergeron, as well as Chagaev.  I know match-ups make fights, but he's struggled (in both victory and defeat) with fighters who have been beaten much more easily by other fighters.  Edited by: JD074