I see
Allison as a ln - I've known several - and since I dislike lnfns in general (with a few exceptions like
Stuart) that puts me off. I love
Alison and would have used it but DH's family used to contain a very dodgy
Alison relative who put them all off! Anyway, I love
Alice and since
Alison with one l is a diminutive, that's another reason for preferring it.
Alison RosalieAlison JeanAlison ElinorAlison RuthAlison Emily
Taylor Alison? I'd expect them to be separated by a comma, and to appear on an alphabetical list where the surname comes first. I know nothing about
Taylor Swift - no doubt it's a person.