Good topic and its nice to compare the current No.1 to those of years gone by.

Wlad vs. ALi - Ali has too much speed and movement and runs rings around Wlad. One sided.

Wlad vs. Foreman (70s version) - Foreman was a strong, powerful and brutal Heavyweight and Wlad's chin is made for George's fists. KO early for Foreman.

Wlad vs Holyfield - Interesting this one and the one Wlad has the most chance in. Holyfield had underated skills and speed and could move in and out while also very tough and physical. I see him outworking Wlad who is less fluid than say Riddick Bowe.

Wlad vs. Lennox Lewis - They match up sizewise but the advantages in speed and power are with Lennox. This is another fight I don't see lasting very long.

Wlad vs. Larry Holmes - Holmes has the better jab and overall skills, he also finds Wlads weakspot (the chin) often enough to end it around the mid to late rounds.

Wlad vs. Tyson (80s version) - Tyson would be like a hot knife through warm butter. A devastating highlight reel for Tyson to add to the many others.