Buster Douglas had an excellent fight with Tyson January 1990 but still made best use of Tyson's lethargy in what concerns to Mike's known accelerations coming in and simply beat him to the punch most of the time with flashy jabs combined with solid straight rights and uppercuts.
Evander Holyfield had an excellent performance against Douglas October 1990 but still made best use of Douglas lack of conditioning in what concerns to sharpness, feinting and throwing from outside and caught him open with that twisting counter right as James missed with a long left uppercut.
Holyfield's best accents which were the relentless attack with studied, blazing combinations and moving on his toes and in circles against Buster Douglas size and excellent leg movement himself, floating and unleashing faster, more fluid punches than Evander? I say Buster would probably have beaten Evander to the punch often but Evander's resilience and Douglas chin would determine a late TKO for Holyfield, very much like against Dynamite Dokes in Ceasers Palace 1989.