Fighting the best welterweights. who?

[rob6465]

Based on boxing rec's the top 15 welterweights are:
Shane Mosley 2039 46 (39) - 5 (0) - 0
1993 37 orthodox Pomona, California, United States
2 Antonio Margarito 1122 37 (27) - 6 (1) - 0
1994 31 orthodox Tijuana, Baja California, Mexico
3 Miguel Angel Cotto 1065 34 (27) - 1 (1) - 0
2001 28 orthodox Caguas, Puerto Rico
4 Andre Berto 980 25 (19) - 0 (0) - 0
2004 25 orthodox Winterhaven, Florida, United States
5 Joshua Clottey 681 35 (20) - 3 (0) - 0
1995 32 orthodox Bronx, New York, United States
6 Sebastian Andres Lujan 575 31 (20) - 5 (2) - 2
2001 29 orthodox Rosario, Santa Fe, Argentina
7 Alfonso Gomez 524 19 (9) - 4 (1) - 2
2001 28 orthodox Whittier, California, United States
8 Isaac Hlatshwayo 516 28 (10) - 1 (0) - 1
2000 31 orthodox Soweto, Gauteng, South Africa
9 Zab Judah 500 37 (25) - 6 (2) - 0
1996 31 southpaw Las Vegas, Nevada, United States
10 Motoki Sasaki 492 31 (20) - 7 (3) - 1
1997 33 orthodox Tokyo, Japan
11 Jose Luis Castillo 485 57 (49) - 9 (6) - 1
1990 35 orthodox Mexicali, Baja California, Mexico
12 Carlos Quintana 477 26 (20) - 2 (2) - 0
1997 32 southpaw Moca, Puerto Rico
13 Jesus Soto Karass 471 23 (16) - 3 (0) - 3
2001 26 orthodox Los Angeles, California, United States
14 Vyacheslav Senchenko 468 29 (20) - 0 (0) - 0
2002 31 orthodox Donetsk, Ukraine
15 Jackson Osei Bonsu

How many have cotto, clottey and floyd fought of the top 15?