http://rateyourmusic.com/~All_Music_Guide

I'm assuming an independent source put this together?

They've yet to put any Wilco ratings up...

but, does AllMusic still operate as a judge-albums-only-compared-to-said-act's-output? Just to use one example of thinking, a 5-star Beatles album should not be compared to, say, a 5-stat Backstreet Boys album. As that list shows, no real fly-by-night/fluff acts have a 5-star rating for a non-compilation album, but, I guess the same could be said for ratings lower than 5 stars.