Im putting 10, not all may be at 140 but they have been there recently
1.Floyd Mayweather Jr.
2.Kostya Tszyu
3.Diego Corrales
4.Manny Pacquiao
5.Marco Antonio Barrera
6.Juan Marquez
7.Erik Morales
8.Miguel Cotto
9.Jesus Chavez
10.Ricky Hatton

i agree wit prolly all ur list, but I'd have diego corrales a little further down the list, maybe in the 8th spot. I dunno if its just me, but IMO he's too slow and doesnt jab enough when he walks in. And as a result, gets whacked alot while he's coming in. He also has limited head movement.

Im putting 10, not all may be at 140 but they have been there recently
1.Floyd Mayweather Jr.
2.Kostya Tszyu
3.Diego Corrales
4.Manny Pacquiao
5.Marco Antonio Barrera
6.Juan Marquez
7.Erik Morales
8.Miguel Cotto
9.Jesus Chavez
10.Ricky HattonI'll add: Castillo, Injin Chi, Sahaprom,RMarquez, Harrison, Joan Guzman, VHarris, Yodsanan...

not in any particular order. :) Sorry, can't fill up the 19th and 20th slots. An old man's memory is failing... ;)

I totally agree on Harris being in this list! People are sleeping on him!