What? Holyfield only fought like two or three times at light heavy, and those were his first pro fights. Not quite sure what you're asking here.
A steroid using Roy versus a pre-steroid Holyfield. Holyfield never even made the 175 lb. limit I don't think. He was arguably at his best at cruiserweight, but was no light heavyweight.
Holyfield never made 175. He was a little over 175 for his first few fights, then was closer to the cruiserweight limit of 190. He fought Qawi for the title in like his 12th fight or so. A green Holyfield sucking down to 175 after a few pro fights ain't beating a 2000 version of Roy Jones at that weight.