I enjoyed Pendragon, balancing out the virtues/vices with genuine consequences to decisions in or out of character. I also liked the 'between games' sequences of random events, like jousting. It always tickled me that it didn't try to be a 'historical' Arthurian setting, but went a much more Hollywood route, mixing the native Britons (Cymric) with Norman-like knights, Saxons and Vikings!