All such measures are subjective. What rights the reviewers see as important will change ratings. There is no fair way to compare countries that everyone will agree on. If you really want to compare rate countries we first need a crittera discussion which will take a long time (and most people probably don't actually care enough to complete it)

How much of their concept of "rights" enters into the "positive vs negative" rights debate? Depending on one's perspective, this could heavily skew things in one direction or the other.