Personally, I think
Allie or
Callie sounds a bit immature. I think it's nice for women to have a more formal, professional sounding name, at least for resumes or business cards, even if everyone calls them by a nickname. People call me
Laurie, but I would never want to put that on a resume.
I really love the name
Allison, I just wish it wasn't so popular. I also really like the name
Calla, nn
Callie.