They aren't bullshit like pitchfork and they usually, imo, seem to be spot on. What do you think about how well allmusic has done at judging albums? They're always my first place to check out albums and their genre sections are awesome for finding new music.
While I think that they do a great job overall what about the new Bon Iver album getting 2 1/2 stars (possibly a little low). Do you think that they've picked the right songs for best of an album. I'd disagree heavily with their song picks for King of Limbs for example.
This thread could be just a general allmusic response sense it seems to be a pretty well respected source of music criticism.