Oooh, I really like
Elsa and
Bette (I prefer this spelling, like
Bette Midler).
Betsy's cute, and I used to love it, but it's not as nice as
Elsa or
Bette, imo.
Elsa is one of my favorites on its own, actually.
Elizabeth is just so overused. But it's still a lovely, classic name.
Elizabeth Natasha is lovely, though I'd prefer to see it the other way around.