Do you just associate the name Elsa with the movie Frozen or do you like the name in its own right?
I really like the name Stella or Elise for a girl but DH said no. I told him to find another name.
DH then said he liked the name Elsa.
It has similar sounds to Stella and Elise and so I agreed - i'm now sold on the name and just love it. Now Dh is having second thoughts as he thinks it will just be associated with the movie Frozen. Well, that is where he heard the name (although I did work with a lady with the name, and it is a variant of Elizabeth, DD's middle name, so I think it's got a nice sibling connection).
Bub isn't due until December so I think some of the hype may have died down by then. My view is if you like a name, who cares. He worries too much about what others will think.
BTW, I don't like Elsie as an alternative.