Old thread but I have to chime in...
I have sent more PCGS 70 graded coins back to their previous owners because the coins were obviously NOT grade 70. Scratches, coin dings, terrible mint frosting...
I have seen several NGC holdered coins that were scratched yet the labels didn't mention this fact...
I have lots of ANACS holdered coins and haven't seen one yet where the grading was really wrong.
I've read stories about fake slabs of all three companies but have yet to see one.
I have seen all three companies slabs with errors on their labels...some from all three were huge oversights. One PCGS I owned, I submitted it too, had the wrong coin listed on the label.
ANACS certifies all errors for a reasonable price...all
VAM's too.
NGC...Because I use PCGS and ANACS, I have never submitted a coin to them but I own quite a few NGC certified coins.
TPG all make mistakes...all of them.
There is no hierarchy of good, better, best from these three companies, IMHO.
One thing is: the collectors pay the premiums for PCGS but compare slab fees...$24 for a
VAM designation, $20 for economy grading...$55 for error attribution...come on...in lots of instances, that's the difference in premiums.
Use what you like and learn how to submit...there are ways to save money and lastly...
Buy the coin, Never Buy the slab