My vote goes to Carlos Zarate who, from 1970 to 1978 went 52-0 with 51 KO's. This winning streak included 8 successful title fights all won by KO. Carlos amazing streak came to a halt against fellow banger Wilfredo Gomez when he challanged for Gomez's Super Bantamweight title. http://boxrec.com/list_bouts.php?human_id=402&cat=boxer
carlos zarate is a damn fine choice. off hand, my list would be something like... 1) julian jackson 2) sam langford 3) george foreman 4) jimmy wilde 5-8) gomez/zarate/olivares/hearns (any order)
Danny Little Red Lopez is right up there in the stratospheres with Julian jackson and Bob Foster, IMO.
Just one hell of a beautiful knockout by Lopez.. http://www.youtube.com/watch?NR=1&v=OEsxKUdy0gU&feature=endscreen