Mine are Eric Morales, Sugar Ray Leonard and Oscar De La Hoya. Even though Roy Jones is my all time favouite fighter he was to dominant for his fights to be even near competitive, the guys i've listed have been in plenty of competitive fights and can box and brawl when they need to which i prefer to all out brawling (Gatti type fighters).
Pretty much the same as everyone else mentioned above this post, but I will include Emanuel Augustas (Sp?)
Barrera, Morales, early Tyson, Lennox Lewis, Duran, Chavez, Arguello, Castillo, Coralles, Benn, Eubank, Sanchez, Ray leonard, hagler, hearns, Ali, Mijares, Calzaghe, etc
Ali, lee, dempesy, guzman, juan diaz, mike tyson (trained by gus d'amato), katsidis, cotto, sutherland, haye and pavlik.
All-time: Vitali Klitschko Mike Tyson Erik Morales Tito Trinidad Wilfredo Gomez Julio Cesar Chavez Pernell Whitaker Lennox Lewis