Lydia is popular on here too. Ruby is very popular right now, if that bothers you. Also very nice! Ailsa - problems with spelling and pronunciation would be common. Erin - not my cup of tea, but not awful by any stretch.
Harriet -beautiful. How would you pronounce Ailsa? It reminds me of Home and Away unfortunately! As in Alf's wife. I like Lydia too, but knew one at school... not that she was a bad one... just a predominant one! But that might be a good thing, it wouldn't put me off! x