Most Overrated Band of the 'Big Six'

As is well known to those who know me, I consider that group fundamental and seminal for the birth of symphonic rock, the historical importance of EL&P for the evolution of progressive rock is unquestionable (I should perhaps say the importance of Keith Emerson first with Nice and then with EL&P) - 

For example the three most popular Italian groups (Banco, Pfm, Orme) were inspired by Emerson, or, another example the transcription in rock guise of classical music compositions and the display of virtuosity on the piano with long original musical scores worthy of classical music are always due to Emerson, but.... 

but I cannot find any real masterpieces in their albums despite the fact that they have one of the best singers of the seventies, Greg Lake. 

From a compositional and melodic point of view, EL&P are really lacking, and even their long suites show this lackness: much elaboration, little inspiration. There are also often many modest short tracks on their albums. Emerson and Palmer's overflowing virtuosity sometimes (often) takes over from the composition, which suffers as a result.

Anyway, this is just my opinion. My evaluation is still the same: EL&P have great historical importance, and therefore in this matter they deserve to be considered "big", but if I judge the quality (beauty) of their albums today, this is much poorer than that of the major albums of the golden age of prog.