I agree with Richard, et al about Beckett and modern cards -- I was looking for that option, but a 3 way survey would have been way too much!
I don't agree with the 'no numbers needed' sentiment. I also don't think that the TPGers are giving 'exact grades'. Sure, they give a number...but for the cards I collect (T206s in VG - VG/EX), I view a 40/3 and a 50/4 as the same grade and let my eye make the decision from there. There are 3's that I absolutely love...there are 4's that I wouldn't touch. Such is life in the armpit of collecting