Which was his best career defining win? I can't help but feel people will remember him for KTFO a poor Tyson, the rematch with Rahkman or smashing Vitali Klitschko's face inside out.
His revenge victories over McCall and Rahman. He made his reputation against Mason and Ruddock. His victory over Tyson was his finest moment, but IMO his best performance was against Tua, where he was pretty much punch perfect. Looking at the stats does not do Lewis justice, nor does hindsight. Golota was considered a huge threat comming off the Bowe fights. Grant was considered by many the real deal and was favoured by some to finish off Lewis. Ditto Ruddock and Tua.
I did a poll along similar lines to this in General about a couple years ago, and it was interesting to see most people picking the Golota fight. I guess that was his big 'reintroduction' to the general US public. I can't be specific myself. All I can say is that I consider his 5 best in-ring performances in terms of what he was able to do and what he was able to prevent his opponent from doing to be Ruddock, Morrison, Golota, Holyfield I and Rahman II.
I would not say it was obvious, it could be argued it was Ruddock, because that fight showed for the first time Lewis was World class... or perhaps that was the Mason fight?
Lennox's career defining fight was in my opinion his revenge ko of Rahman. It was the way you're supposed to avenge a ko defeat. You could also argue that his ko of Tyson was his best. Either one would be good choices. Lewis was the best Heavyweight Champion or at least one of the best of modern times.
That could be said but in the bigger scheme of things is it better to show you are world class or an all time great!