The only instance I can think of in the OT of anyone showing true Anti Droid bias is Wuher in the Cantina. Since the Clone Wars I've assumed the galaxy has a love/hate relationship with Droids. But nothing conclusive is shown by the Empire to be totally Anti Droid. They just don't care about a Droids rights as they are seen as equipment.
I'm sure we will eventually get there with Ep VII, Spin Off movie content, and Rebels. Still plenty of stuff to look forward to like the rest of the Bounty Hunter zoo crew, a possible Jedi Luke, and Papa Palpatine.
Musicman, how big is your group and on what nights do you still meet up to play? I've got to get practice in before I get beat to a bloody pulp at Regionals