This is a very good website for seeing which albums and songs are actually “rated” by music critics, and how highly, which many of you here could find interesting.
It uses a formula to aggregate the rankings of basically all the ‘best of’ lists from major music magazines and websites, eg from Rolling Stone’s ‘best albums of all time’, to Pitchfork’s ‘best songs of the 90s’ etc etc - and compiles them in to two comparable lists for most acclaimed songs of all time, and most acclaimed albums of all time.
http://www.acclaimedmusic.net/