I've loved
Elizabeth forever, but it's gotten so overly common that I would probably never use it. If it was a family name, though, I could be persuaded to use it as a mn. My grandmother's fn was
Elsie, not short for anything, but
Elsie is a short form of
Elizabeth. Recently, I've fallen in love with the name
Elspeth, which I'd like to use as a mn. It's the Scottish form of
Elizabeth. It's different enough from
Elizabeth, too, to set it apart imo. If I did ever use it as a fn, though,
Elsie (or
Elsa), is a good nn option. :)