Actually, the prestige bard (from UA?) is one PrC I do allow, albeit a tweaked version, because I don't allow the core class.
Why do you disallow the base Bard but allow prestige?
I have banned several classes, including paladins, druids, warlocks, beguilers and duskblades. I don't allow anything from the Book of Nine Swords.
Why do you ban the Walock, Beguiler, and Duskblade?
And just ooc, why do so many people hate on the Bo9S? I like it, it's fun, powerful, flavorful, even it doesn't make much sense.