World Champions who moved down Successfully

Roy Jones. Still won world championships after his heavyweight affair, although in the slide

 

Floyd and Manny won titles at Jnr Middleweight, then won Welterweight titles after
Roy Jones Won Light Heavyweight world titles then won the heavyweight title, then won another Light Heavy world title the next fight

 

Two-division champs, whose 2nd title was at a lower weight than the 1st:

Carlos Ortiz 140/135
Sung Kil Moon 118/115
Jacob Matlala 112/108

 

i never particularly liked him but Steve Collins had [some] amateur fights at heavyweight, won titles at mid/super mid.

 

I have no respect for boxers like Bernard Hopkins who move down to gain a size advantage over smaller men. I'd rather they behaved like men and fought people their own size.