From this thread, I love the following names:
Hilda, Agnes, Mabel, Beryl, Rita, Evadne, Agatha, Freida/Frida, Pearl/Margaret, Nora/Leonora/Honora, Nellie (and Eleanor), Marjorie (and Marsali), Ivy, Trudi, Oonagh/Una, Sybil, Gwen, Marie (and Marie-Louise, Marie-Therese, Marie-Claire and other Marie- names).
All the others mentioned, especially Enid and Mildred, I dislike. Would like to add Concepta, Assumpta, Breda, Thecla, Dymphna, Martha and Nuala.