We all know Lennox is retired now. Just imagine he desides to come back and fight the russian giant. After 8-weeks training camp (including sparrings with 7'1" Long, 6'8" Ustinov etc.) Lennox is ready and weighs around 260 lbs. Who wins? Remember that Valuev was clearly outboxed by totally shot 46 y.o. Holyfield. I think Lewis would KTFO Valuev or the referee/corner stops the beating in the middle rounds. Surery, Nick has very good chin, but it's not enough when you're taking Lewis' right hands all night long. Lewis would land frequently and finally knocks the russian giant out.
No disrespect to Valuev, but i actually think Joe Calzaghe could beat him. Calzaghe style would be too busy for him and if Valuev couldn't work his jab Joe would use his speed and work to well make him look stupid. Lewis would beat Valuev.
If Lewis comes back and is even 50% the fighter he used to be, then he wins a wide UD against an absolutely **** so-called heavyweight champ in Valuev.