I once tried to workout Wladimir Klitschko's and I think it's something like 100-13, with one fight I never got to see. Who else has an interesting one? Floyd Patterson maybe? Juan Manuel Marquez?
I have no clue what his knockdown givings vs taking ratio is, but before he started getting his ass kicked constantly Victor Ortiz had an impressive record. Before Mayweather, he had knocked down literally every opponent in 33 fights. And Ortiz isnt a cherry picker, hes constantly, willingly engaging with top 10-20 ranked guys, current or former belt holders, etc. Now, hes mostly the one getting knocked down unfortunately, but i wouldnt mind checking the numbers because win or lose, hes always exciting. If only he had the heart hed be an ATG but its too late for that now, unless he manages to pull off some insane victory in the future.
No one laid Floyd in a 'puddle'; he always got up despite his numerous KD's for reasons already mentioned. He was prone to knockDOWNS, not knockOUTS! Floyd: "I got knocked down more than any HW but I got up more than any HW"
Archie Moore got knocked down over 50 times!! I think that's why they called him the mongoose, if he got nailed , he 'd go down rather than take a flurry of punches and clear his head.