Whittaker over Chavez(not his most dominant performance but considering who he was fighting and the odds going in probably his most impressive)
Whittaker over Haugen had already been mentioned, great call though for anyone who hasn't seen this do so.
Hopkins over Tito... Really Trinidad didn't win a round, against a fighter few people were big on at the time.
Willie Pepp over Saddler in the rematch... Amazing boxing display.
Azumah Nelson over Jeff Fenech II
Azumah Nelson over Jesse James Leija III. (Noone saw that coming at 38 yrs old and after arguably losing to him twice by decision)
Chavez over Rosario. Probably JLC's most dominant showing, at least against that quality of fighter.
Larry Holmes over Tex Cobb
Wilfredo Gomez over Carlos Zarate
Salvador Sanchez over Danny Lopez(sure there are others too I haven't seen alot of his fights, wins over Gomez and Nelson were fantastic but by no means dominant )