I prefer the -lyn spelling myself. I like:
Gwendolen Audrey Gwendolen Aurore Gwendolen BeatrixGwendolen Camilla Gwendolen Camille Gwendolen CeciliaGwendolen Susanna
Gwendolyn is really a lovely name. It's been on my favourites list for ages, but I won't use it because 1. my husband doesn't like it and 2. I can only see this name on a blonde, which my daughter won't be!