i don't know about records. but i would look at some of the players whose names are more associated with defences. (please no spelling corrections.)
Alekhine, Marshall, Najdorf, nimzowitsch.
although, Steinetz was known for aggressive play with white. he was also known to always accept the gambit as black. i wonder how that worked out for him.
So, far I have been trying to find a GM that has a brilliant record on the blackside. I'm not talking about someone like Kasparov or Fischer who dominated both sides; I want to know who has a ridiculously inequitable amount of victories as the defender, so many that this person's opponents dread the idea of being on the attack. This doesn't mean that this person has to lose a lot on white, just that he is best (of the best) on black. So far, the only player I've found with a record similar to that description is Roman Dzindshishkashvili, but there has to be a larger fish out there. Any input would be beneficial.