best and greatest mean pretty much the same thing, but since this site outlined everything as it has, I agree that it shouldn't be included- especially as one of the criteria is how *other* critics view it.
It's one thing to say, "the hits we think were the best of the decade," or, "this is our picks for the most influential/best of the decade," or something along those lines, but this has too many factors other than their own thoughts.