A Sweet Manhattan served on-the-rocks with added herbal complexity and an all-important splash and dash or two of New Orleans bitters.
Driven by comments...
I just tried this new version of the Vieux Carré recipe, and I like it a lot. It tasted great, and (although maybe this shouldn't be a consideration) it fit perfectly in the glass I used for it. I think this will be the version of this classic drink that I default to.