So, which State Supreme Court is the most convincing?
A recent study of citations to state supreme court opinions reveals
that the California Supreme Court is most often followed by sister
state supreme court. The New York Times article describing the study includes the following:
In the 65 years ending in 2005, more than 24,000 state high court cases have been followed at least once. California
leads with 1,260 decisions. Washington is next, with 942, and Colorado
is third, with 848. New York comes in 10th and is only about half as
influential as California, with 627 followed cases.
The study, published in the UC Davis Law Review is available here.