Who am I?

I thought this would be easy.  But is it a Black form of the Tiger swallowtail? (see here)

Or a Pipevine swallowtail (here)  or a Black swallowtail (here) or a Spicebush swallowtail (here)?

Or does it matter if they're all beautiful?

 

Pipevine Swallowtail

There were two of these butterflies, Pipevine swallowtails (here) fluttering around the lantanas.  I tried to get a still picture, but they never stopped fluttering their wings.