Which of these 3 girl names?

whenwillieversleep1

Middle name will either be Hope or one of the three names. Big sister is Mia.

nanner26

I wouldn't do Mia and Sofia. I think Abigail/Abby and Mia are really cute! 

bbiutmcph

Abigail is actually my least favorite BUT with the others ending in ia as well they are a bit matchy with Mia

knottie31f314db76ead97a

Well you've got literally three of the most overused popular names listed here. Beautiful Classics nonetheless  but I could never choose any of these names.  Out of these three I would've vote for Sophia has the prettiest:)

whenwillieversleep1

Yeah me and hubby's taste tends to lean toward popular names. 

Gingermom15

Olivia is my favorite. Honestly, DH and I don’t care about popularity as long as it’s a classic. Just because it’s popular doesn’t mean it’s overused, you do you. 

cantrellja

I wouldn't choose any of them...sorry. Even if you do love them, she will ALWAYS have so many others in her class with the same name...she will forever be known as Olivia B or Olivia R (fill in your last name first initial). Here are a few names that seem similar to the ones you listed but are a bit fresher:

Amelia/Amelie
Emilia/Emily (yes, even Emily is fresher than Olivia, Sophia or Abigail!)
Sophie
Hannah
Miranda
Calla
Dahlia
Fiona
Clara
Marissa
Genevieve
Gwendolyn

BBeninate

I love Abigail, but I'm partial to it since that is my baby's name due in 1 month! 
But Olivia is my second choice!  Great choices.