QUOTE(cmal @ Jun 8 2011, 16:46)

Holy Grail as a whole is their best work. The other movies have some good jokes, but they're not as tight. Flying Circus has some real memorable bits and a few really good jokes, but the rest are either forgettable or only marginally funny the first time and not really after that. Ministry of Silly Walks, for example, is absurd and funny the first time, but then its just "oh look, they're doing funny walks again".
Yeah, it seems like everything else in their repertoire is just really inconsistent.