When I lived in the DC/MD/VA area all the Starbucks carried a great chocolate chip scone. It was pretty dense, yet still fluffy on the inside. The chocolate "chips" were actually chunks.
I've tried a few recipes to recreate this but to no avail.
The scone batter itself was not chocolate, so the scone was white/yellow with chocolate chunks.
When I lived in Nevada, the starbucks carried a similar scone but it was round instead of triangular. This one did not taste as good.