Based on his short domination and unification attempts, I used to have Mike Tyson clinging on to the No.10 spot on my little top 10 list.
However, I always said that if Wladimir Klitschko unified the division, I'd happily regard him as the 10th best Heavyweight ever.

There really is no point picking holes in his opposition. For me it's about being a dominant champion, regardless of the era you fight in.
Besides, how often do you see a heavyweight fighting other 'great' heavyweights (that aren't washed up or out of their better suited weight class)?

Not often. Infact, hardly ever

Those that do, or have, i think you'll find are quite high up on your respective Top.10's... So there's definitely space for Wladdy somewhere