I enjoyed a lot of head-to-head testing on vermouths and Negronis. I find the Cocchi Storico much more complex and use it in most cocktails that expose the vermouth. OTOH, the Carpano is my choice for a Negroni (my notes):
Excellent bitter(sweet) with the Cocchi Storico, layered, orange glints and notes. Even better with the Carpano Antica Formula, which gives a more harmonious drink.
Interesting. I do have to point out that Carpano Classico is not the same as Carpano Antica. The Classico is what I mean as close to Cocchi Torino. They both have the vanilla, raisins, cocoa, spice and bitterness general profile.
Excellent bitter(sweet) with the Cocchi Storico, layered, orange glints and notes. Even better with the Carpano Antica Formula, which gives a more harmonious drink.