Using Jon Bruschke's databases on debateresults.com, I have calculated some historical judge side bias.
For instance, for the 2006-2007 season (the courts topic), the aff won 50.10% of all ballots. The judges below are those most likely to differ from the general judge population that year:
Aff bias:
- Joe Koehle, Aff:56, Neg:30
- Kirk Evans, Aff:26, Neg:10
- Austin Carson, Aff:10, Neg:1
Neg bias:
- Joe Patrice, Aff:22, Neg:45
- Greta Stahl, Aff:26, Neg:50
- Erik Holland, Aff:1, Neg:10
- Brian DeLong, Aff:23, Neg:44
- John Nagy, Aff:15, Neg:32
Other years and more statistical details (as well as the code used to calculate them) are available.