It's hard to argue with Sercu as best track rider based on his 6 Day record, but Koichi Nakano won 10 World Pro Sprint titles in a row and Antonio Maspes had 7. No argument over the others though.
Brian Booth Toronto, ON, Canada
>>>Edward Albert
>>>Chappaqua, New York, USA (and not on the list :( )
My quick vote would be as follows:
Road: Male Merckx (who else) Female Jeanie Longo
Track: Male Patcick Sercu Female Sheila Young
Cross: Male Erik De Vlaeminck
Female ?